Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].

[Q]: Undersheriff Kevin McMahill of the Las Vegas Metropolitan Police Department  said at a press briefing the department has been exploring every aspect of Paddock's life  from birth to death  in search of an explanation.  He  said they have looked into details regarding Paddock's personal life  political affiliations  social behaviors  and economic situation â but answers remain evasive.
"We have been down each and every single one of these paths trying to determine why. Trying to determine who else may have known of these plans  " McMahill  said  adding that the rumors and speculation that have abounded in the wake of the shooting have been unhelpful to their investigation.
"In the past  terror attacks or mass-murder incidents  motive was made very clear  very clear in most of those cases by a note that was left  by a social media post  by a telephone call that was made  by investigators mining computer data  " McMahill  said. "Today in our investigation  we don't have any of that uncovered. I wish we did. We will and are continuing to investigate with great tenacity and hope to arrive at an answer."
 McMahill  also shot down several prevalent rumors that have circulated throughout media reports  telling reporters that they are confident no second shooter was in the room with Paddock during the attack.  He  said  he  could not  however  confirm whether any other people knew about Paddock's plans to carry out the shooting.
 McMahill  also said investigators do not believe anyone other than Paddock accessed  his  suite before the attack  despite reports suggesting a room key was used to enter  his  suite while Paddock's car was outside the hotel's parking garage.
 He  also said the Tannerite â an explosive powder used for long-range target practice â that was recovered from Paddock's home was not in a condition to be used in an IED  as others had questioned.  McMahill  said  it  was also unclear what Paddock intended to do with the tannerite.
Investigators are  however  "keenly interested" in Paddock's medical status at the time of the shooting   McMahill  said. The Las Vegas Review-Journal recently reported that Paddock had been prescribed the anti-anxiety drug diazepam â also known by its brand name  Valium.
"It's really imperative that the listening public have a very clear understanding that there are still a number of people out there that know that something looked out of place  " McMahill  said. "Someone may have been acting suspiciously that night  or in the years prior  the months prior. Somebody that may have seen something or know something."
[A]: Las Vegas motive of Stephen Paddock still unclear police say


[Q]: But  U.S. Ambassador to the United Nations Nikki Haley  expressed confidence the transfers could be blamed on Tehran.
“These are Iranian made  these are Iranian sent  and these were Iranian given ”  Haley  told a news conference at a military hangar at Joint Base Anacostia-Bolling  just outside Washington.
The unprecedented presentation - which  Haley  said involved intelligence that had to be declassified - is part of President Donald Trump’s new Iran policy  which promises a harder line toward Tehran. That would appear to include a new diplomatic initiative.
“You will see us build a coalition to really push back against Iran and what they’re doing ”  Haley  said  standing in front of what  she  said were the remnants of the Nov. 4 missile.
[A]: In first U.S. presents its evidence of Iran weaponry from Yemen


[Q]: (CNN) The elevation of Emmerson Mnangagwa to the presidency of Zimbabwe would amount to an act of political survival matched only by the man he'd replace  Robert Mugabe.
Until Mugabe fired him as Vice President last week   Mnangagwa 's entire political career had been hitched to Zimbabwe's 93-year-old leader.
Now  with the military in control in Harare and Mugabe confined to his residency   Mnangagwa  is believed to be at the center of moves to install  himself  at the head of a transitional government.
This wouldn't be the first time  Mnangagwa  has been in line to lead Zimbabwe
They also hint at  Mnangagwa 's dark past. In late 2000  a cable written by Earl Irving   then a US diplomat in Harare  described  Mnangagwa  as "widely feared and despised throughout the country " warning  he  could be "an even more repressive leader" than Mugabe if  he  were to succeed  him .
Fear of  Mnangagwa  stems from  his  position as Mugabe's enforcer and head of the Central Intelligence Organization (CIO)  or secret police  and  his  alleged role in the 1983-84 massacres of the Ndebele ethnic group in Matabeleland  a region in Zimbabwe's southwest that was a center of political opposition to Mugabe's regime.
Mnangagwa's elevation without an election would be viewed with suspicion abroad. Kate Hoey  a British Labour MP who has campaigned for years to highlight oppression under the Mugabe regime  described  Mnangagwa 's in a parliamentary debate as "probably the one person in Zimbabwe who inspires even greater terror than Mugabe."
Nicknamed the "crocodile" on account of his political longevity and survival skills   Mnangagwa  has for years been thought to be biding  his  time  ready to takeover from Mugabe when the nonagenarian finally stepped aside  or died.
 His  impeccable revolutionary credentials  coupled with  his  strong support among key parts of Zimbabwe's elite -- specifically within the military and security services -- singled  him  out as an obvious  and non-controversial  successor.
But this was to dramatically change earlier last week  when Mugabe sacked  Mnangagwa  in a move seen as shoring up the power of  his  wife and chosen successor  Grace Mugabe.
A statement from the country's information ministry accused  Mnangagwa  of "disloyalty  disrespect  deceitfulness and unreliability " sending  him  into hiding amid reports  he  was attempting to build a coalition to take on Grace Mugabe in the next election.
"One after the other  (Mugabe's) vice presidents and people around  him  were estranged by Grace Mugabe " said Geoff Hill  author of "What happens after Mugabe?".
[A]:
Emmerson Mnangagwa a 'tyrant' in line to lead Zimbabwe