Question: Which of the mobsters that Nicholas Calabrese testified against suffered from many sicknesses and dies on Christmas day 2012?

Context paragraphs:
Disney Parks Christmas Day Parade: The Disney Parks Christmas Day Parade is an American television special that airs on Christmas Day on ABC, taped primarily inside the Magic Kingdom theme park at Walt Disney World Resort in Orlando, Florida, approximately one month prior to Christmas Day.  A Spanish simulcast of the parade has aired on Univision under the titles Desfile de Navidad Disney, (Feliz) Navidad Disney, and Navidad Mágica Disney, and typically airs Spanish singers who sing Christmas carols as well as their latest hits.  Past shows have included segments featuring other Disney theme parks in Orlando, Florida; Anaheim, California; and around the world (plus in recent editions, the Disney Cruise Line).  The program has aired annually since 1983, with the exception of the year 2000 when Disney aired a Christmas Eve "Tracking Santa" special instead.  In 1999, a nighttime version of the parade was shown on Christmas Day.

National Basketball Association Christmas games: Games held by the National Basketball Association (NBA) on Christmas Day, December 25, have been an annual tradition since the league's second season in 1947.  Currently, five games are played on Christmas.  Unlike the National Football League (NFL)'s traditional Thanksgiving Day games, the NBA's Christmas Day games have no fixed opponents; rather, they feature some of the best teams and players.  Very often a rematch of the previous season's NBA Finals is showcased on Christmas Day.

Youcef Nadarkhani: Youcef Nadarkhani (born 1977) is an Iranian Christian pastor who was sentenced to death (but later acquitted) in Tehran as being a Christian having been born into Islam.  Initial reports, including a 2010 brief from the Iranian Supreme court, stated that the sentence on Nadarkhani (first name also spelled Yousef, Youssef, or Yousof; last name also spelled Nadar-Khani or Nadar Khani) was based on the crime of apostasy, renouncing his Islamic faith.  Government officials later claimed that the sentence was instead based on alleged violent crimes, specifically rape and extortion; however, no formal charges or evidence of violent crimes have been presented in court.  According to Amnesty International and Nadarkhani's legal team, the Iranian government had offered leniency if he were to recant his Christianity.  His lawyer Mohammad Ali Dadkhah stated that an appeals court upheld his sentence after he refused to renounce his Christian faith and convert to Islam In early September 2012, Nadarkhani was acquitted of apostasy, but found guilty of evangelizing Muslims, though he was immediately released as having served prison time.  However, he was taken back into custody on Christmas Day 2012 and then released shortly afterwards on 7 January 2013. <ref name="http://au.christiantoday.com"> </ref>

Christmas Eve: Christmas Eve is the day before Christmas Day, the festival commemorating the birth of Jesus of Nazareth.  Christmas Day is observed around the world, and Christmas Eve is widely observed as a full or partial holiday in anticipation of Christmas Day.  Together, both days are considered one of the most culturally significant celebrations in Christendom and Western society.

Frank Calabrese Sr.: Frank Calabrese Sr. (March 17, 1937 – December 25, 2012), also known as "Frankie Breeze", was a made man and a caporegime who ran major loansharking and illegal gambling operations for the Chicago Outfit.  He is best known as a central figure in Operation Family Secrets and the subsequent Federal trial.  Calabrese, who was battling a myriad of ailments, died on Christmas Day 2012 at the Federal Medical Center, Butner, in North Carolina.

Serbian Christmas traditions: Serbian Christmas traditions are customs and practices of the Serbs associated with Christmas and a period encompassing it, between the third Sunday before Christmas Day and Epiphany.  There are many, complex traditions connected with this period.  They vary from place to place, and in many areas have been updated or watered down to suit modern living.  The Serbian name for Christmas is "Božić" (Cyrillic: Божић, ] ), which is the diminutive form of the word "bog" ("god"), and can be translated as "young god".  Christmas is celebrated for three consecutive days, starting with Christmas Day, which the Serbs call the first day of Christmas.  On these days, one is to greet another person by saying "Christ is Born," which should be responded to with "Truly He is Born," or in Serbian: „"Hristos se rodi"“ ] – „"Vaistinu se rodi"“ ] .

Nicholas Calabrese: Nicholas W. Calabrese (born November 30, 1942) is the first made man ever to testify against the Chicago Outfit.  His testimony and cooperation with federal prosecutors helped result in the 2007 murder convictions of mobsters Joseph Lombardo, James Marcello and his brother, Frank Calabrese Sr.

Late December 2012 North American storm complex: Near the end of 2012, a massive storm complex developed that produced both a tornado outbreak and a blizzard across the southern and eastern United States.  On Christmas Day 2012 (December 25), a tornado outbreak occurred across Southern United States.  This severe weather/tornado event affected the United States Gulf Coast and southern East Coast over a two-day span.  It occurred in conjunction with a much larger winter storm event that brought blizzard conditions to much of the interior United States.  In total, 31 tornadoes were confirmed by the National Weather Service in five states from Texas to North Carolina.  All but one of the tornadoes that occurred during the outbreak touched down on December 25, with the other occurring the following day in North Carolina.  Two of the tornadoes were destructive enough to be rated EF3 on the Enhanced Fujita Scale.  At least 16 people died as a result of the related blizzard, and thousands were without power.

Santa Claus: Santa Claus, also known as Saint Nicholas, Saint Nick, Kris Kringle, Father Christmas, or simply Santa (Santy in Hiberno-English), is a legendary figure of Western Christian culture who is said to bring gifts to the homes of well-behaved ("good" or "nice") children on Christmas Eve (24 December) and the early morning hours of Christmas Day (25 December).  The modern Santa Claus grew out of traditions surrounding the historical Saint Nicholas, a fourth-century Greek bishop and gift-giver of Myra, the British figure of Father Christmas and the Dutch figure of "Sinterklaas" (himself also based on Saint Nicholas).  Some maintain Santa Claus also absorbed elements of the Germanic god Wodan, who was associated with the pagan midwinter event of Yule and led the Wild Hunt, a ghostly procession through the sky.

The Snowmen: "The Snowmen" is an episode of the British science fiction television series "Doctor Who", first broadcast on Christmas Day 2012 on BBC One.  It is the eighth "Doctor Who" Christmas special since the show's 2005 revival and the first to be within a series.  It was written by head writer and executive producer Steven Moffat and directed by Saul Metzstein.

Supporting paragraphs: Nicholas Calabrese Frank Calabrese Sr.
Answer: Frank Calabrese Sr.