They were this guy’s pal.
They are thought to be from Kazakhstan and had not been seen since the bombings until Friday night when their ground floor apartment in New Bedford, MA, was raided by a dozen FBI agents at gunpoint.
One of their girlfriends was also arrested on Friday. All three are in their late teens or early 20s.
The three were subsequently released on Friday night before Saturday’s arrest of the two men.
Their apartment was raided because police say the younger Boston Marathon bombing suspect, 19-year-old Dzhokhar Tsarnaev, may have lived at their address.
MailOnline has discovered another link – Dzhokhar Tweeted pictures of the car on his Twitter account J_tsar.
In one picture the BMW is next to another dark coloured sports car with the caption: ‘Place your bets’ as if they are about to race.