 While high-technology industries located on Austin's periphery, its central area sprouted multi-storied office buildings and hotels during the 1970s and 1980s, venues for the burgeoning music industry, and, in 1992, a new convention center.On August 1, 1966, UT student and former Marine Charles Whitman killed both his wife and his mother before ascending the UT Tower and opening fire with a high-powered sniper rifle and several other firearms.Whitman killed or fatally wounded 14 more people over the next 90 minutes before being shot dead by police.