Detweiler's father called him about harming the cats and told detectives his son got angry and threatened to kill him. Detectives said Detweiler told his father he was "working up to killing a person" and planned to kill him first. Detweiler told the friend he did not have a reason for throwing Tabi, saying the cat did not bite or scratch him. During questioning after his arrest, Detweiler initially told detectives he would accept mental health treatment, the documents state. While in custody, corrections officers said he later told them he planned to "rip his father’s head off" for contacting police.