A Boston-area mosque has refused to bury the body of 26-year-old Tamerlan Tsarnaev, one of the men allegedly behind the Boston Marathon bombing, his aunt tells NBC News.

Patimat Suleimanova said that Tsarnaev's body has been released to his family, who requested a funeral from their local mosque. She did not know which mosque it was, only that they refused.

Tsarnaev was known to at least one local Muslim leader for disrupting services, and in one instance loudly objecting to a devotional that held up Dr. Martin Luther King, Jr. as a figure to emulate.

He was killed in a shootout with police Friday morning, but his brother, 19-year-old Dzhokhar Tsarnaev, escaped in a vehicle. He was later found hiding in a boat, but reportedly shot himself before police could reach him. He's said to be in stable condition.

Investigators claim the younger Tsarnaev said the two plotted the attack as an act of revenge for the wars in Iraq and Afghanistan, The Washington Post reported Wednesday.

Investigators added that there does not appear to be an organizational link to the brothers, suggesting they acted alone. They also claimed that the surviving suspect said they were aided by an English-language al-Qaeda propaganda magazine called "Inspire," aimed at providing potential western terrorists with information on how to carry out attacks.