Three friends were found dead in a Waltham apartment in April 15 . Ibragim knew one of the men well , friends say . Mess ' picture still hangs on the restaurant wall . A friend of Tamerlan Tsarnaev , Tamerlan Tsarnaev Todashev , was killed during questioning by the FBI . The Boston Marathon bombings left more than 260 dead , more than 260 wounded .
Three friends were found dead in a Waltham apartment in April 15 . Ibragim knew one of the men well , friends say . A friend of Tamerlan Tsarnaev , Tamerlan Tsarnaev Todashev , was killed during questioning by the FBI . The Boston Marathon bombings left more than 260 dead , more than 260 wounded .