The prosecutor examining the death of a Chechen man shot to death by an FBI agent in Florida during questioning about a Boston Marathon bombing suspect says he anticipates completing his investigation into what happened by the end of the next month.

State attorney Jeff Ashton said in a statement Wednesday that he plans to release his report by the end of March.

Ibragim Todashev was killed in Orlando in May while FBI agents and others questioned him about his friendship with suspected Boston Marathon bomber Tamerlan Tsarnaev.

Officials originally said the 27-year-old lunged at an agent with a knife. They later said it was no longer clear what happened.

Ashton met with Todashev's family in August shortly after that he said he would review the circumstances that led to the shooting.