Texas police said they still haven't uncovered the motive behind the beating death of the pastor of a Forest Hill church.
Police in Forest Hill, a suburb of Fort Worth, say Derrick Birdow, 33, drove his car into Greater Sweethome Missionary Baptist Church Monday and hit Rev. Danny Kirk.
The driver then picked up an electric guitar and began beating him. John Whitaker, the church janitor, said he tried to intervene.
"I hit the man upside the head and it didn't phase him," Whitaker said. "Then I went and got a two-by-two and hit again. He didn't say anything. He was crazy. He was super strong."
The pastor died after the beating with the guitar.
Forest Hill police used a taser to subdue Birdow, who later died in the patrol car.
The suspect's brother, Glen Birdow, said his brother didn't attend Greater Sweethome, but his wife may have visited a few times. He said he has no idea why his brother would have attacked the pastor.
"I don't even know Pastor Kirk. I'm sorry for his family and everything they're going through, but that was not my brother," the Dallas Morning News quoted Glen Birdow. "That was somebody else, and I hate that."
Texas Department of Public Safety is handling the case at the invitation of Forest Hill officials.
"This is still an ongoing active investigation," Texas Department of Public Safety spokesman Lonnie Haschel said. "Investigations have unique twists and turns. We don't speculate. We're still are interviewing witnesses and reviewing evidence."