Man Killed in Tyler May Have Had Mental Issues

TYLER – The son of a man killed by a Tyler home owner on Tuesday says his dad may have suffered from a mental illness. Luke Garrison, 44, was shot to death when he broke into the home of a 77 year old man and charged him. Garrison’s son, Seth, tells KETK about two months ago, his dad began exhibiting behavior that suggested mental illness. Acting confused, angry, and anxious are just a few of the symptoms he mentioned. He said his dad “didn’t seem like himself those past two months it was kind of like it was someone else.” Seth said his dad owned a construction company in Brownsboro and there seemed to be no apparent reason for him to commit such a crime.