‘In addition, Boston police have surveillance video of someone bringing multiple backpacks to blast site, according to CBS News.
Police also confirmed that there was a third explosion, at the John F. Kennedy Presidential Library and Museum. It was not immediately clear how much damage was done or whether it was related to the bombings at the marathon finish line.’
‘Investigators have a suspect — a Saudi Arabian national — in the horrific Boston Marathon bombings, The Post has learned.
Law enforcement sources said the 20-year-old suspect was under guard at an undisclosed Boston hospital.’