Bombs are simple in design, hard to trace

Apr 18, 2013

Bombs are simple in design, hard to trace

by Joby Warrick and Sari Horwitz

The bombs that tore through a crowd of spectators at the Boston Marathon could have cost as little as $100 to build and were made of the most ordinary ingredients — so ordinary, in fact, that investigators could face a gargantuan challenge in attempting ...

April timing of attack fuels speculation about culprits

Apr 18, 2013

April timing of attack fuels speculation about culprits

Troubling anniversaries linked to U.S. extremists have fueled speculation about who is behind the Boston bombings even though investigators have yet to publicly cast blame on any culprits. The twin bombs left at the marathon’s finish line Monday, which killed three people and wounded ...