AUSTIN (KXAN) - The Perry-Castaneda Library has reopened Wednesday morning following the investigation into the gunman who entered the building Tuesday morning with an AK-47 and shot himself.
The library reopened at 7:30 a.m., with lots of students heading inside the doors to resume their normal activities. Classes resumed as scheduled Wednesday as well.
The only sign that something happened on the University of Texas campus Tuesday morning is the police tape that seals off the courtyard area leading into PCL.
Meanwhile, police continue to search for a motive for the shooting that happened just after 8 a.m. Tuesday.
Police said Colton Tooley, 19, fired shots with an AK-47, likely into the air near the fountain at the base of the UT Tower, just after 8 a.m. As police were called to the scene, they chased after him and Tooley ran into the library and into the stairwell.
When he reached the sixth floor, police said he shot himself. No one else was injured, and police never fired their weapons. Police gave the all-clear just before noon Tuesday.
Authorities spent three hours looking for a possible second gunman, though they concluded Tooley acted alone.
In the meantime, campus was put on lockdown for nearly four hours. Students, faculty and staff were told to stay inside their buildings, turn off the lights and lock the door. Thanks to the UT text alert system, those more than 43,000 who had subscribed were alerted to the gunman on campus.
Tuesday afternoon, police visited the home where Tooley lived with his parents. They took out several items in brown paper bags, in addition to his desktop computer.
Tooley was a 2007 graduate of Crockett High School and a sophomore mathematics major at the University of Texas.
Friends who knew him best described him as shy and friendly. They said they never noticed any signs that would have pointed to him killing himself.
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