of continuing pain including a phone call he made yesterday. when he was not able to be seen immediately, he drove to a gun star and one hour later was at the hot shooting. he bought the gun and went in to kill those people that same day. the first 911 call came in at 4:52. four minutes later, police were on scene. officers entered the building on the first floor and made their way to the second floor based on the information they received. while on the second floor of the vast building, officers began yelling tulsa police, this is something that we train to do. as officers were calling out tulsa police and advancing towards a suspect location, they heard a gunshot. we believe that was the final gunshot with the suspect taking his own life. the gunshot was at 4:52 p.m., approximately 39 seconds after the first officers entered the building. police say they know the shooter s motive because they found a letter on his person that confirmed he came to the hospital with the i