Older Bomb Suspect Said Influenced by Radical Muslim Mentor

Older Bomb Suspect Said Influenced by Radical Muslim Mentor

The Lowell Sun/Julia Malakie/AP Photo

Federal investigators believe Tamerlan may have learned how to build the devices by reading jihadist websites, including an online magazine affiliated with al-Qaeda called Inspire, according to an official briefed on the investigation who asked not to be identified because of government policy.