Look back at terrorism in America

Published On: Apr 15 2013 04:57:44 PM CDT   Updated On: Jan 05 2015 10:16:51 AM CST

As suspected Boston Marathon bomber Dzhokhar Tsarnaev's trial begins, take a look back at the history of terrorist attacks on home soil.

terrorist attacks - Shanksville
5 / 14
Richard Snodgrass/National Park Service

A fourth plane, United Airlines Flight 93, was targeted at the U.S. Capitol, but crashed into a field near Shanksville, Pa., after its passengers tried to overcome the hijackers. The four hijackers died in the crash along with 40 people on the plane. Here, tokens honoring Flight 93 can be seen near the fence surrounding a construction site for a permanent memorial in May 2011.

Upload Photos / Videos