FBI personnel walk through the complex surrounding the apartment, where Ibragim Todashev was shot and killed by FBI, in Orlando, Florida, May 22, 2013. 
 
 GROZNY, Russia (Reuters) - The father of a Chechen immigrant killed during questioning over his links with one of the Boston Marathon bombings suspects said on Thursday he plans to travel to the United States where he thinks his son was tortured and killed. 
 
 Ibragim Todashev, 27, was killed by a federal agent in his apartment complex when he became violent during questioning over his ties to Tamerlan Tsarnaev, the older of two brothers suspected of planting two bombs at the marathon on April 15. 
 
 "I suspect that they tortured my son and that he suffered a painful death," said Abdulbaki Todashev, wiping away tears at the home he shares with one of his wives in the mostly Muslim region of Chechnya in Russia's North Caucasus. 
 
 "I will try to go to (the United States) and get to the truth," he said as he received neighbors and acquaintances paying their respects to the dead man, the oldest of 12 children between his father's two wives. 
 
 Todashev had met the Tsarnaevs when he travelled to the United States to improve his English, said his father, who works in the mayor's office in Chechnya's main city of Grozny and is said to be on close terms with regional leader Ramzan Kadyrov. 
 
 He said he gave his permission when his son asked to stay in the United States because he said it was safer than Chechnya, where separatists waged two wars with Russia after the fall of the Soviet Union and militants still fight for an Islamic state. 
 
 Todashev travelled to the United States in 2008 on a Russian passport, a federal law enforcement source said, and lived in Boston before moving to Florida, where he was killed. His father said he had a plane ticket to return to Russia on Friday. 
 
 "He shouldn't have left. He lived comfortably and his mother was very worried about him because he was the oldest in the family and she was used to him being a model for the others," said a neighbor, Malika, who refused to give her last name. 
 
 The FBI agent who shot Todashev, who practiced mixed martial arts, has not been publicly identified but is from the agency's Boston division, the Orlando Sentinel reported. 
 
 U.S. media reported that Todashev implicated himself and Tamerlan Tsarnaev in an unsolved 2011 triple homicide in a Boston suburb that investigators believe was drug related. Authorities were investigating possible connections between Tsarnaev and the crime. 
 
 "Chechens have a power in their unity and interest in what happens in their homeland. It unites them. That's the reason my son became an acquaintance of the Tsarnaevs," said Todashev, speaking in the courtyard of his older wife's house. 
 
 Todashev is one of at least two friends of Tamerlan Tsarnaev who Federal investigators have been looking at very thoroughly since the Tsarnaevs were first identified as Boston bombing suspects, a law enforcement source said. 
 
 A friend of Todashev in the United States, Khusen Taramov, said Todashev was trailed constantly for the past several weeks by agents and questioned repeatedly by phone and in face-to-face interviews which lasted as long as five hours. Taramov said he was questioned as well. 
 
 Todashev was arrested on May 4 and charged with aggravated battery after getting into a fight with another man over a parking space at an Orlando shopping mall, according to the Orange County Sheriff's Office in Orlando. 
 
 The man, who suffered a split upper lip and had several teeth knocked out of place, did not to press charges against Todashev, who was released from jail on a $3,500 bond, a sheriff's spokeswoman said. 
 
 (Additional Reporting by Mark Hosenball in Washington D.C. and Barbara Liston in Orlando; Writing by Thomas Grove; Editing by Jon Hemming) ||||| As a mixed martial arts fighter, Ibragim Todashev had talent — and a temper. 
 
 Fighters, promoters and referees that came in contact with the 27-year-old Russian shot dead by the FBI in Orlando, Fla., early yesterday as part of the Boston Marathon bombing probe said he was quiet, but hated following rules. 
 
 Todashev once lived in Cambridge and trained at the Wai Kru gym in Allston. 
 
 “It wasn’t that he was a bad training partner or that he was a bad person around the gym. His only way to resolve a lot of conflicts was violence,” a former training partner told the Herald. 
 
 The training partner said he saw Todashev and slain Boston Marathon bombing suspect Tamerlan Tsarnaev, 26, interact “a few times.” Tsarnaev was also into MMA before turning to terror. 
 
 Fighting as a lightweight, Todashev went 4-3 as an amateur on the New England circuit. 
 
 Sandwich native Jimmy Davidson fought Todashev in 2009, knocking him out in the third round. The 24-year-old, who trains in Somerville, remembers Todashev walking to the cage to a Chechen song. 
 
 “I remember his warm-up music,” Davidson said. “He didn’t come out to a traditional song. It was some like cultural Chechen song. It was just kind of like bells. He was a tough kid, I remember that. He came out and he threw ax kicks and was kind of an unorthodox style.” 
 
 Todashev fought twice for American Fighting Organization promoter Pete DiLorenzo and three times for Cage Fighting Xtreme promoter Linda Shields. 
 
 “The first time I met him was in the prefight meeting with the officials. He was a quiet kid,” DiLorenzo said. “I remember the Chechen being brought in with his entourage.” ||||| Ibragim Todashev was involved in mixed martial arts in Central Florida. YouTube video shows him fighting. 
 
 An FBI review team from Washington was in Orlando on Thursday investigating the death of Ibragim Todashev, the Central Florida man shot by an agent while being questioned about a triple murder in Massachusetts and his connection to the Boston Marathon bombing suspects. 
 
 The review team will question witnesses who were at the Orlando condo when the shooting occurred early Wednesday morning, including two Massachusetts State Police troopers and other law-enforcement officials. The FBI agent who fired the lethal shot, who has not been publicly identified, is from the agency's Boston division. 
 
 Todashev, a 27-year-old mixed-martial-arts fighter, was being questioned about a 2011 triple slaying in Waltham, Mass., federal-law-enforcement sources told the Tribune Washington bureau. 
 
 Federal officials think he and Tamerlan Tsarnaev, one of the suspected Boston bombers, may have had a role in cutting the throats of three men and sprinkling marijuana over their bodies. One of the three Waltham victims, Brendan H. Mess, was described as a close friend of Tsarnaev's. 
 
 Todashev and Tsarnaev — both Chechen-born — knew each other through the mixed-martial-arts community in Boston, friends told the Orlando Sentinel. 
 
 In the wake of the shooting Wednesday, several of Todashev's friends told the Orlando Sentinel that the FBI had been questioning and following Todashev since two days after the April 15 Boston attack. 
 
 Tuesday night's interview was supposed to be his last, Todashev's friends said. 
 
 While the law-enforcement officials were questioning Todashev at the condo off Peregrine Avenue near Universal Studios, he initiated a "violent confrontation," said Orlando region FBI spokesman Dave Couvertier. 
 
 Todashev reportedly lunged at the FBI agent with a knife, and the law-enforcement officer fired. An autopsy was expected to be completed Thursday, but the report will not be made public for several weeks — if not months — because the case is under criminal investigation. 
 
 A relative stepped forward to claim Todashev's body from the Orange-Osceola County Medical Examiner, but the person's name was not made public. Friends said nearly all of Todashev's relatives are in Russia. 
 
 'Everything is a setup' 
 
 Todashev's estranged wife, Reniya Manukyan, denounced Todashev's slaying and posted photos of the couple together on a European social-media network for Russian-speaking users. 
 
 She used expletives to describe the FBI and wrote: "Killing my husband Ibragim was another prove that everything is a setup about Tsarnaev brothers as well." 
 
 In an undated photograph she posted Thursday, Manukyan commented that she "will fight to your justice," referring to Todashev. 
 
 Todashev's father, Abdulbaki, told Russia Today that his son was "a very calm" man who wouldn't become aggressive for no reason. 
 
 "Never in his life would he attack anyone unprovoked," Abdulbaki Todashev told the publication. 
 
 Although friends described him as a "good guy," Todashev was arrested by Orange County deputies earlier this month after he allegedly got into a fight with two men in an outlet-mall parking lot over a parking space. 
 
 A Sheriff's Office report said Todashev left the scene while one of the victims was unconscious on the ground surrounded by a "considerable" amount of blood. 
 
 "I thought he was wearing brass knuckles, but it was just his fist," said Lester García Baez, one of the men attacked. "It was shocking how accurate and quick his punches were." 
 
 And a former training partner at a gym outside Boston told the Sentinel that Todashev was a gifted athlete but also a "hothead." 
 
 FBI shootings rare in Florida 
 
 On Thursday morning, multiple FBI employees could be seen coming and going from the condo where Todashev was killed. 
 
 In addition to the FBI's review team, a separate Shooting Incident Review Group committee will analyze the incident, Couvertier said. 
 
 This independent review committee, which includes up to 13 members of the FBI, will evaluate whether use of force was justified. 
 
 FBI-involved shootings are rare in Florida, and none has occurred in recent history in Orlando. It was not immediately clear how many FBI-involved shootings occur each year in the United States. 
 
 In May 2010, an FBI agent shot and killed Ronald J. Bullock on MacDill Air Force Base in Tampa. 
 
 The agent was helping base police arrest Bullock, who was armed with a knife. The FBI said Bullock ignored repeated commands to drop the weapon, and when he charged the agent, the law-enforcement officer fired. 
 
 The review group concluded the agent followed the FBI's deadly force policy and did not violate any laws. 
 
 Staff writers Richard A. Serrano of the Tribune Washington Bureau and Arelis R. Hernández contributed to this report. jesullivan@tribune.com or 407-420-5620. apavuk@tribune.com or 407-420-5735.
– The father of Ibragim Todashev, Tamerlan Tsarnaev's friend killed during FBI questioning this week, says he thinks authorities "tortured my son and that he suffered a painful death," he tells Reuters. Abdulbaki Todashev, who works for the mayor of Grozny, Chechnya's main city, plans to visit the US "and get to the truth." After traveling to the US in 2008, the younger Todashev was supposed to have come home today. "He shouldn't have left," his father says. Ibragim Todashev met the Tsarnaevs during his time in the US, where he went to learn English, his father says. "Chechens have a power in their unity and interest in what happens in their homeland. It unites them. That's the reason my son became an acquaintance of the Tsarnaevs." Recently, FBI agents had been following Ibragim's movements for weeks, says a friend. Meanwhile: Boston locals recall Todashev via the Herald. Says a fellow mixed martial arts fighter: "His only way to resolve a lot of conflicts was violence." FBI agents are in Orlando investigating Todashev's death. An autopsy was set to be finished yesterday, though the results may not emerge for months amid the probe, the Sentinel reports.