RRISD police chief leaves, says district 'delayed' investigations

ROUND ROCK, Texas (KXAN) -- Round Rock ISD Chief of Police Dennis Weiner said in a letter to the district's superintendent that he was leaving due to "delayed" investigations, including an alleged student sexual assault that happened last month.In his letter to the RRISD superintendent, Weiner began with the latest investigation involving a 5-year-old who was allegedly sexually assaulted on one of the district's school buses on April 12. He said that while the bus driver witnessed the assault, t