James "Whitey" Bulger, the reputed former head of Boston's Winter Hill Gang, evaded police for 16 years before being arrested with girlfriend Catherine Greig in Santa Monica, California, in 2011. Seen here in a 1984 FBI photo, he is facing trial for racketeering, extortion and 19 counts of murder. 
According to prosecutors, Bulger's crew learned that a bookie named Richard Castucci was cooperating with the government, and John Martorano was sent to kill him. Castucci was shot in the head and stuffed in a sleeping bag in the back of his car. 
Steve "The Rifleman" Flemmi, left, and bookie Dick O'Brien in one of several surveillance photographs entered into evidence in the Bulger trial. Flemmi, Bulger's partner, would meet O'Brien to collect thousands of dollars in "taxes" every month. 
Flemmi's stepdaughter, Deborah Hussey, was allegedly murdered in 1985 by Bulger because she knew that Flemmi was an FBI informant. 
Flemmi met Debra Davis at a jewelry store, and the couple dated for more than seven years. In 1981, Bulger is said to have killed Davis because she knew that Flemmi was an informant. 
Dr. Ann Marie Mires, a Massachusetts state forensic anthropologist, was brought in to show photos of Bulger's alleged victims, including Debra Davis. Because Davis' body was put into bags, almost all of her remains were recovered -- even some of her hair was preserved. 
Bulger is accused in the slaying of Roger Wheeler, a wealthy businessman who was gunned down outside a country club in Oklahoma in 1981. 
Mug shots of Bulger in 1953. 
Bulger was the godfather to John Martorano's first son. Martorano has admitted to 20 killings as part of Boston's Winter Hill Gang and is the government's star witness against Bulger. 
Prosecutors said they found more than $800,000 in cash and 30 weapons, including handguns, an automatic rifle and a hand grenade, when Bulger was arrested in 2011. 
Photographs of weapons that officials said belonged to Bulger at the time of his arrest in 2011. 
Photographs introduced as evidence show weapons allegedly belonging to Bulger at the time of his arrest in 2011. 
In 2008, John Martorano testifies against former FBI agent John Connolly, who was accused of helping the Boston mob kill gambling executive John Callahan in 1982. 
John Callahan was an organized crime associate of the Winter Hill Gang and former president of world Jai Alai. Prosecutors allege Bulger ordered a hit on Callahan after he learned he would be cooperating with the feds on the high-profile murder of an Oklahoma business man. 
John Connolly was convicted of second-degree murder in the slaying of Callahan and received a 40-year sentence in 2009. 
Former FBI supervisor John Morris testified at Bulger's trial on Friday, June 28, saying that he provided information to Bulger in exchange for money and gifts. Here, Morris testifies during the John Connolly murder trial in Miami in 2008. 
Bulger's booking photo from June 23, 2011. 
Bulger's girlfriend, Catherine Greig, was sentenced to eight years in federal prison in 2012 for identity fraud and helping the reputed mob boss avoid capture for 16 years. 
J.W. Carney, Bulger's defense attorney, arrives at the U.S. Federal Courthouse for the start of Bulger's trial in Boston on Wednesday, June 12. 
This undated surveillance photo released on Monday, July 8, by the U.S. Attorney's Office at federal court in Boston shows Bulger, left, with his former right-hand man, Kevin Weeks. Weeks took the witness stand at Bulger's racketeering trial and described a double slaying, multiple extortions and drug dealing. 
Bulger and Kevin Weeks walk around Castle Island on Boston Harbor. 
Kevin Weeks leaves the courthouse on Monday, July 8, after testifying in graphic detail about how Bulger killed Arthur "Bucky" Barrett, Joey McIntyre and Deborah Hussey. 
The remains of Thomas King, former member of the Winter Hill Gang, was found in late 2000. A bulletproof vest, a navy suit, driving gloves and a claddagh ring were found among the remains. Martorano, one of Bulger's hitmen, testified that he himself had shot King in the back of the head. 
The body of Stephen Rakes was found on Wednesday, July 17, in Lincoln, Massachusetts, west of Boston. Rakes was scheduled to be a witness for the prosecution before he was dropped from the list. 
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- Steve "the Rifleman" Flemmi describes several killings at "Whitey" Bulger trial
- Flemmi misidentifies a drug dealer, causing an outburst from wrongly accused man
- Bulger strangled Flemmi's stepdaughter, Flemmi tells court in Boston
- James "Whitey" Bulger is charged with murder in 19 killings
Boston (CNN) -- The fireworks started early on day 26 of the James "Whitey" Bulger trial in Boston on Monday when Stephen Flemmi, who mouthed an expletive at his alleged former partner in crime when he first took the stand last week, riled up a member of the gallery.
Flemmi, in an apparent error, testified that Steve Davis, the brother of victim Debra Davis, was a drug dealer and an informant. Flemmi was actually referring to another Davis brother, Mickey, but the damage was done. Steve Davis, who has been a daily fixture in court, erupted. "That's a f*****g lie," he shouted, his face turning red, his body shaking as he stood.
U.S. District Judge Denise J. Casper called for order, and Davis calmed down. She allowed him to stay, but Davis stormed out and returned later. Flemmi, who earlier testified that he had removed Debra Davis' teeth to prevent identification, immediately apologized and clarified he meant Mickey Davis.
After court, Davis was contrite, apologizing for being "disrespectful to the court."
It was hardly the only highlight or the only lapse for Flemmi, who seemed to struggle much more with his memory. At one point, he told prosecutor Fred Wyshak, "I'm getting confused."
Flemmi: Bulger killed my girlfriend 
Bulger witness's death a mystery 
Victim's widow testifies against Bulger Still, Flemmi was able to lead the jury on a decades-long journey that included extortion, meetings with FBI agents and slayings. Bulger's 32-count indictment includes 19 murder charges.
Flemmi testified he was by Bulger's side for most of it. Although Bulger's defense attorneys have adamantly denied that their client was an informant, Flemmi described hundreds of occasions when he and Bulger met with FBI agents. Bulger's FBI handler John Connolly turned out to be corrupt, accepting thousands of dollars from Bulger and his crew in payoffs and in turn tipping them off to law enforcement activity.
'Whitey' Bulger says he's not a snitch, but FBI file tells a different story
Flemmi, nicknamed "the Rifleman," also described vividly the brutality -- and at times absurdity -- of their crimes.
Describing the execution-style killing of Arthur "Bucky" Barrett, who was shot in the back of the head as he, Bulger and Flemmi walked into a cellar, Flemmi said, "I didn't know (Bulger) was going to shoot him. I was right in front of (Barrett). He could have shot me. The body fell on me."
Bulger trial witness: I lived to tell tale of Russian roulette-style drama
Asked for Bulger's explanation of the shooting, Flemmi offered, "He made some asinine statement" but didn't elaborate. Afterward, Flemmi said Bulger lay down while Flemmi and another cohort, Kevin Weeks, cleaned up the mess and buried the body.
Flemmi said Bulger did the same thing after several other killings, including after strangling Flemmi's stepdaughter, Deborah Hussey. Flemmi said Hussey was a drug addict and prostitute who was causing problems at a bar associated with Bulger and his gang.
Flemmi said he gave Hussey money for drug rehab but admitted to "reluctantly" going along with a plan to kill her. He said Bulger strangled her. "It didn't take long," he said. "She was a fragile woman."
Juror weeps as Bulger trial witness recounts strangulation death
The defense began cross-examining Flemmi with just 15 minutes left in the court session, but in that short time, attorney Hank Brennan, with a rapid-fire delivery, managed to fluster one of the prosecution's star witnesses.
Brennan asked Flemmi whether he used to bounce Hussey on his knee when he knew her as a child. Flemmi responded, no, and Brennan pounced, referencing prior testimony in which Flemmi said he had done so. Asked to explain the discrepancy, Flemmi meekly offered that he didn't think the question was important the first time he was asked.
"Why would you want to distance yourself?" Brennan asked. "Is it because of what you did to her a couple of decades later?"
Brennan then got Flemmi to admit he was involved with Hussey sexually twice "but not intercourse."
When Brennan asked why he had strangled Hussey, Flemmi shot back, "I didn't strangle her."
The 15-minute exchange left the courtroom buzzing with anticipation of what will come next.
See also: Shot-by-shot testimony in Bulger trial makes jurors squirm
