The FBI tonight released video footage and still images of the suspects believed responsible for the Boston Marathon bombing on Monday that left three people dead, and officials said they are leaning toward the conclusion that this was a domestic rather than foreign attack, reports CBS News.
CBS News correspondent Bob Orr reported that sources say investigators have leads on possible names of the suspects, but FBI agent Richard DesLauriers told the public in tonight's press conference that FBI needs help.
When asked by a reporter if the attack was domestic or international, DesLauriers deferred to another senior federal official, who said investigators are leaning toward a domestic attack but can't say for sure.
During a press conference on Thursday, the FBI released video and photos of the suspects, shown wearing baseball caps and carrying two backpacks that presumably contained the bombs. Investigators also say they have video footage of at least one of the suspects setting his backpack down in the location where one of the bombs went off.