Complex sentence: At 11:48 a.m. Whitman began shooting from the observation deck above the ground, targeting people on the campus and on a section of Guadalupe Street known as the Drag, which was home to coffee shops, bookstores, and other student hangouts.
Split into simpler sentences: At 11:48 a.m. Whitman began shooting from the observation deck, above the ground. He targeted people on the campus and on a section of Guadalupe Street known as the Drag, which was home to coffee shops, bookstores, and other student hangouts.