Updates to follow.

ORLANDO, Fla. — An FBI agent shot and killed a man overnight in Orlando who had ties to one of the suspects in the Boston Marathon bombings, NBC News has confirmed.

According to NBC News, a special agent was interviewing the suspect regarding his connections to bombing suspect Tamerlan Tsarnaev and other extremists. The suspect, who was not immediately identified by officials, was originally cooperative, but he was shot after attacking the agent.

A friend of the suspect, Khusn Taramiv, said his friend, 27-year-old Ibragim Todashev, was being investigated as part of the Boston bombings and knew Tsarnaev because both were MMA fighters.

Taramiv claims he and Todashev were interviewed by the FBI for nearly three hours on Tuesday.

Update: Hmmm.

(TPM) — The Florida man questioned by authorities for his connection to alleged Boston Marathon bomber Tamerlan Tsarnaev allegedly confessed to being involved with a 2011 triple murder before being fatally shot Tuesday by an FBI agent, NBC News reported.

Ibragim Todashev, 27, confessed to being involved in the grisly homicide that took place in the Boston area two years ago and has gone unsolved. Tsarnaev, who was killed in a shootout with police last month, was the roommate of one of the three victims in that murder and authorities began investigating his role in the slaying following the marathon bombings.