In this task, you are given news articles and you need to generate a highlight, i.e., a short summary, with a maximum length of 10 lines.

(CNN) -- With one child dead and the second arrested in her death, a California woman pleaded for a bit of privacy on Mother's Day. Crystal Walters posted a brief message on Facebook on Sunday, the day after sheriff's investigators in Calaveras County announced the arrest of her 12-year-old stepson on a homicide charge in the death of her 8-year-old stepdaughter, Leila Fowler. "I don't have much to say but thank you to those who are standing by us in this devastating time for our family," Walters said in a brief post on Facebook. "And thank you for respecting our privacy during this time. We need a little space. Happy mothers day to all." Leila Fowler was stabbed April 27 in the family's northern California home. The 12-year-old boy told police he'd seen an intruder leaving the home. But Saturday, police announced the boy had been arrested. "Citizens of Calaveras County can sleep a little better tonight," Sheriff Gary Kuntz said. The death of young Leila, known for her bubbly personality, shook the small town of Valley Springs, where purple ribbons, in Leila's favorite color, were tied to stop signs. After the killing, police offered a sketchy description of the suspect as a 6-foot-tall white or Hispanic male with a muscular build. They also interviewed registered sex offenders in the area, ran down leads and searched in attics, storage sheds and more in the rural, mountainous community located about 60 miles southeast of Sacramento. Kuntz said law enforcement officers "put over 2000 hours into this investigation to provide Leila Fowler's family with answers in her death." Hundreds flock to vigil for slain girl . He declined to answer questions after Saturday evening's announcement and didn't specify the exact charges against the brother, where he is being held or when he will appear in court.
Leila Fowler was stabbed to death in April .
Her 12-year-old brother was arrested Saturday .
The boy told police there had been an intruder in their home .

(CNN) -- Airport hotels have always been necessary but unloved stopover spots for the depleted traveler, places to shower, rehydrate and let the body recuperate from the merciless rigors of flying. Yet checking into the Hilton Frankfurt Airport, which opened in December turned out to be much more. It's an example of the emerging generation of airport hotels that are intended to function as destinations, real places where one might reasonably stay longer than a single night. Some of the best and most spectacular airport hotels are in Asia: the Regal in Hong Kong; the Crowne Plaza in Singapore. Now the rest of the world is catching up, and the newest airport hotels in Europe, the United States, Latin America, and elsewhere are responding to the generalized craving for experience. And there's more going on than that: the increasing sophistication of these hotels parallels a reemergence of civilization—daring architecture; edible food—in airports themselves. Travel + Leisure: Innovative new airport terminals . The improved hotels are one component of a backlash against that shiny one-world placelessness that airports have long cultivated. Moreover, they are being retooled for a new breed of business traveler. "The nature of work is changing," says Erin Hoover, head of design for the Sheraton and Westin brands, "and it's very collaborative." Now airport hotels—like the newly opened Hilton in London, Novotel in Auckland, New Zealand, and Element in Miami—are catching up, bringing technology, design, and style to the international stopover. Hilton Frankfurt Airport . The Hilton Frankfurt Airport is a stylish, hyper-connected oasis. The hotel, along with the lower-priced Hilton Garden Inn, occupies the eastern end of the Squaire (a name meant to evoke town square and air), an ultra-elongated mixed-use complex that rests on angled columns atop a high-speed rail station, is adjacent to the airport's commuter train station, and is squeezed between two major autobahns. When Squaire managing director Christoph Nebl characterizes it as "the best-connected spot in Europe," he's not exaggerating. Travel + Leisure: America's safest airports . Sheraton Malpensa Hotel (Milan) A series of glass modules lined up like the teeth of a comb, this property makes for a fitting addition to a world capital of design. Atlanta Airport Marriott Gateway . Two minutes from the terminal via SkyTrain, the building is LEED certified and has a lobby floor made of terrazzo embedded with glass. Aloft San Francisco International Airport . A newly rehabbed Clarion Inn building—dropped ceilings have been removed to give the rooms at this hotel an airy feel, and an expanded lobby big enough for a bustling bar scene has been added. Travel + Leisure: America's best and worst Airports . Hilton Heathrow Terminal 5, U.K. From its glamorous all-white main lobby staircase and unusually glitzy light fixtures to perfectly manicured exterior grounds and a celebrity chef--helmed restaurant (Mr. Todiwala's Kitchen), this property has all the makings of a hotel hot spot. Element Miami . The Miami International Airport satellite of this Westin brand features the cutting-edge Pilot program, where electricity can be generated by guests using the hotel's stationary bikes. The fully equipped kitchens, nutritious menus, and bathrooms with mood-improving lighting attest to Element's health-conscious hospitality approach. ALT Hotel Pearson, Toronto . Original art, Egyptian cotton linens, an Italian-made Calla chair, and Fruits & Passion bath products lend sophisticated global flair to the 153-room ALT, part of Canadian hotel group Groupe Germain. Custom Hotel, Los Angeles . Relaunched and refreshed by Joie de Vivre in September 2011, this bombastic crash pad minutes from LAX appeals to your sense of whimsy with themed gimmicks, like the Pan Am--inspired staff uniforms and Hangar Lounge, the property's main lobby. Steigenberger Airport Hotel Berlin . When Berlin's long-awaited Brandenburg Airport opens in March 2013, so too will this grand 322-room property with an outdoor reflecting pool, nine meeting spaces, a lobby bistro, and a fitness center with a gym, sauna, and steam bath. Lotte City Hotel Gimpo Airport, South Korea . Understated and refined, this hotel provides a welcome break from its chaotic surroundings—a massive theme-park-mall complex within the airport. It opened in late 2011, with touch screen controls in the 197 rooms. Planning a getaway? Don't miss Travel + Leisure's guide to the World's Best Hotels . Copyright 2012 American Express Publishing Corporation. All rights reserved.
Hilton Frankfurt Airport is part of a mixed-use complex atop a high-speed rail station .
ALT Hotel Pearson in Toronto features original art and Egyptian cotton linens .
Guests at the Element Miami help make electricity by using the hotel's stationary bikes .

Washington (CNN) -- New details emerged of what the White House knew about the Internal Revenue Service targeting of conservative groups, with spokesman Jay Carney disclosing Chief of Staff Denis McDonough was among the top officials made aware of the matter late last month. In a new timeline provided by Carney to reporters on Monday, General Counsel Kathryn Ruemmler learned on April 24 of a pending Treasury inspector general's report on how IRS staff used criteria targeting conservative groups in assessing eligibility for tax-exempt status. According to Carney, Ruemmler told McDonough as well as other Treasury officials about the pending report. It was the first time the White House acknowledged that McDonough was aware of the report before it became public in early May. IRS: By the numbers . In addition, Carney made clear that the information Ruemmler received on April 24 included details of improper acts by IRS officials. At the same time, Carney emphasized that the information was preliminary and could have changed before the inspector general released his final report on May 14. Carney insisted no one -- including Ruemmler and McDonough -- told President Barack Obama anything about the inspector general's pending report before media reports about it began appearing on May 10. "We knew the subject of the investigation and we knew the nature of some of the potential findings, but we did not have a copy of the draft report," Carney said. "We did not know the details, the scope, or the motivation surrounding the misconduct and we did not know who was responsible. Most importantly, the report was not final and still very much subject to change." Opinion: What happened to Obama's promise? However, the new information on Monday continued a perception of a White House on the defensive over the issue, one of at least three controversies dogging Obama as his second term reaches the four-month mark. The Senate Finance Committee will hold the second congressional hearing on the matter Tuesday, after the House Ways and Means Committee grilled the outgoing acting commissioner of the IRS last Friday. On Monday, the Senate panel's Democratic chairman and ranking Republican sent a letter to the IRS official, Steven Miller, seeking an exhaustive list of information about the case. Another hearing is set for Wednesday by a third panel -- the House Oversight Committee. Some Republicans are calling for a special investigation into the IRS matter, in which tax officers assessing applications for tax-exempt status used key words such as "tea party" in determining levels of scrutiny. CNN Poll: Likability helps Obama survive brutal week . Separately on Monday, a Northern California tea party group filed the first lawsuit against the U.S. government stemming from the IRS targeting. "The IRS and its agents singled out groups like NorCal Tea Party Patriots for intensive and intrusive scrutiny, probing their members' associates, speech, activities and beliefs," according to the suit filed in Cincinnati. "NorCal and its members suffered years of delay and expense while awaiting the exemption and spending valuable time and money answering the IRS' questions. The result was a muffling and muzzling of free expression" the lawsuit claimed. The group alleged violations under the Privacy Act as well as violations of its constitutional rights guaranteeing free expression and equal protection under the law. Opinion: We're pointing a gun at our democracy . Carney offered the new timeline in response to the first question at his daily media briefing, when a reporter noted "confusion" over what Ruemmler was told about the inspector general report in late April. He noted the report found no outside intervention in the IRS targeting of what he called "inappropriate scrutinizing of conservative groups" seeking tax-exempt status, and that no one in the White House intervened in the inspector general's review or "did anything that could be see as intervening." In addition, Carney said, the misconduct had stopped in May 2012, almost a year before Ruemmler or anyone else at the White House were told of it by anyone at Treasury. At the same time, Carney disclosed that White House and Treasury officials discussed the pending inspector general's report in the weeks before its formal release, even though he said no one told Obama about it. The White House first was notified of the upcoming report, known as an audit, on April 16, he said, calling that a routine notification also provided to Congress. Ruemmler was told about it eight days later and she informed McDonough and others about it shortly thereafter, Carney said. "Ruemmler was informed that the inspector general for tax administration was completing a report about line IRS employees improperly scrutinizing what are known 501(c)(4) organizations by using words such as 'tea party' and 'patriot'," he said. In particular, Carney said that "at no time did anyone on the White House staff intervene with the IRS inspector general audit." "There were communications between the White House Counsel's office and White House Chief of Staff's office with Treasury Office of General Counsel and Treasury's Chief of Staff office to understand the anticipated timing of the release of the report and potential findings by the" inspector general, he said, but added that Ruemmler acted properly in not informing the president. IRS official denies intentional political targeting, lying to Congress . "The cardinal rule, as I said, is you do not intervene in an independent investigation and you do not do anything that would be, that would give such an appearance particularly when the final conclusions, as was the case here, have not been reached," Carney said. "That is the doctrine we followed and the bottom line is, and this isn't just the most important fact, it is what we have said from the beginning - neither the White House nor Treasury intervened in the inspector general's audit." Last week, Miller blamed a huge increase in workload, rather than deliberate targeting, for "foolish mistakes" in the political discrimination cited by the inspector general's report. He told the House Ways and Means Committee that the IRS division handling requests for tax exempt status was overwhelmed by a surge that followed the Supreme Court's 2010 Citizens United decision. "I think that what happened here was that foolish mistakes were made by people who were trying to be more efficient in their workload selection," Miller said, calling the practices described in the inspector general's report as "intolerable" and a "mistake," but "not an act of partisanship." He apologized for what he later called "horrible customer service," but he also stubbornly rejected any accusation that it amounted to politicizing the work of the IRS. However, Republicans noted the increased requests for tax exempt status didn't kick in until 2011, months after the targeting began, according to the inspector general's report. Rep. Dave Camp, chairman of the Republican-led panel, and other GOP members sought to depict the controversy as indicative of government gone wild, with the IRS abusing conservative groups and other political foes of the administration. Democrats on the committee also expressed outrage at the targeting of conservative groups seeking tax-exempt status, but they pointed out that the top IRS official at the time was appointed by Republican President George W. Bush, not Obama. Opinion: IRS scandal is about donors, not tax . They also noted that the inspector general's report stated there was no evidence of any political motivation for what happened, or influence from outside the IRS. The Treasury Department oversees the quasi-independent IRS. Some Republicans are trying to find a link between the Obama administration and the IRS targeting. According to the inspector general's report, the IRS developed and followed a faulty policy to determine whether the applicants were engaged in political activities, which would disqualify the groups from receiving tax-exempt status. The controversial move began in early 2010 and continued for more than 18 months, the report said, declaring that "the IRS used inappropriate criteria that identified for review Tea Party and other organizations applying for tax-exempt status based upon their names or policy positions instead of indications of potential political campaign intervention." Among the criteria used by IRS officials to flag applications was a "Be On the Look Out" list, which was discontinued in 2012, the report said. Conservative groups complain their requests were delayed for months or even years through the targeting that sought to prevent ineligible political groups from getting tax exempt status. Miller testified Friday that determining the political nature of groups was one of the hardest tasks of IRS officers tasked with assessing requests for tax exempt status. The investigation by the Treasury inspector general for tax administration was initiated after congressional complaints began to surface in the media in 2012 that the IRS was targeting conservative groups and holding up applications. In a written response included in the report, the IRS commissioner of the Tax Exempt and Government Entities Division said there was no criminal behavior behind the actions of the agents, but rather inefficient management. Obama called the inspector general's findings outrageous and forced Miller's resignation. In addition, the commissioner of the IRS' Tax Exempt and Government Entities Division also announced his retirement Thursday. Joseph Grant will leave in June, according to an internal IRS memo provided to CNN. Miller also is scheduled to exit then. Obama has appointed Danny Werfel, a White House budget office official who has served in both Democratic and Republican administrations, to succeed Miller through the end of the fiscal year on September 30. Obama counter-punches in effort to regain political balance . CNN's Dana Bash contributed to this report.

A Senate committee holds a hearing Tuesday on the IRS targeting .
White House discloses new details of what it knew about the IRS targeting report .
White House spokesman says President Obama wasn't told of the pending report .
NEW: First lawsuit filed over IRS targeting .