April 16, 2007 — -- Today's killings of at least 29 people on the campus of Virginia Tech is among the worst school shootings in U.S. history. Here's a look at some other notable attacks on U.S. campuses:
Full coverage continues on "World News With Charles Gibson," "Nightline," "Good Morning America," and an ABC network special Tuesday at 10 p.m. EDT
Information compiled from various local news sources and wire reports.
