( CNN ) The family of Ibragim Todashev , an associate of Tamerlan Tsarnaev who was killed during an FBI interrogation , plans to sue the agency . Todashev 's parents filed a `` notice of claim '' Monday , saying they plan to seek $ 30 million in a wrongful death lawsuit . The claim argues the FBI has given `` no viable justification '' to account for shooting and killing Todashev during a 2013 interrogation in Todashev 's apartment in Orlando , Florida . The interrogation occurred about a month after the Boston Marathon bombings and centered around another crime linked to bombing suspect Tsarnaev : a 2011 triple homicide in Waltham , Massachusetts . Todashev admitted to his direct role in slashing three people 's throats in Waltham and said Tsarnaev was involved as well , a federal law enforcement official told CNN in 2013 . It was during that interview that Todashev was shot dead . The Council on American Islamic Relations Florida filed the notice of the Todashev family 's intention to sue on Monday . `` We are seeking answers and justice for someone who was shot seven times by an FBI agent in his own home after hours of interrogation , '' said Ali Kurnaz , a spokesman for the civil rights group . Many things that happened that day do n't add up , Kurnaz said . `` Todashev was unarmed with any gun , knife , explosive or other deadly weapon , '' the notice says . `` Todashev did not pose a threat of serious bodily harm . '' The FBI did not immediately respond to a request for comment . Officials who spoke to CNN after the shooting painted a different picture of what happened during the interrogation . One law enforcement official said Todashev attacked the FBI agent with a broom handle , gashing his head before the agent opened fire . At the time , the official stressed that the shooting was justified and done in self-defense because the agent felt threatened . A U.S. government official briefed on the investigation rebuffed the idea that Todashev was n't a threat -- noting , for instance , that he could have taken the agent 's gun . `` He was armed . Maybe it was n't a weapon , but he had a long object , '' the official said . And because of Todashev 's martial arts expertise , `` he was a weapon himself . '' But from the outset , that argument did n't add up to the Todashev family . `` My son was definitely unarmed , because he never had a gun , '' father Abdulbaki Todashev told CNN in 2013 . `` He could n't attack them or fight them ; he could n't do anything because even two men could easily handle him . '' The elder Todashev suggested his son may have been provoked . `` If you question someone for eight hours , you can provoke him into anything , '' he said . Last year , Florida State Attorney Jeffrey Ashton said after an investigation the FBI agent 's actions were justified . `` ( Todashev ) went down , but he was not incapacitated . He came up again in an aggressive manner , and the officer then fired the second volley of three or four shots . Which at that point essentially incapacitated Mr. Todashev , '' Ashton said . `` It would seem almost superhuman , but everything that we have learned in the investigation would show an individual who has a great deal of tolerance of pain and would more or less fight beyond it . `` It seemed to me that if the goal was to get away , he could have gone out that back door and gotten away instead of going towards the officers . '' CNN 's Susan Candiotti , Evan Perez , Phil Black and Carol Cratty contributed to this report .
Ibragim Todashev was killed during a 2013 FBI interrogation . His family has filed a notice that it plans to the sue the FBI for $ 30 million . Todashev was an associate of Boston Marathon bombing suspect Tamerlan Tsarnaev .