Tamerlan Tsarnaev was declared a suspect of the Boston bombing by the FBI.
 According to the federal indictment, during the shootout, Tamerlan was captured but died, partly as a result of his brother driving over him, and an MBTA police officer was critically injured in the course of Dzhokhar's escape in the SUV, the latter by what may have been friendly fire
 A search warrant affidavit partially unsealed in November 2019 provided further details to Tsarnaev's link to the triple homicide

