Man accused of shooting San Marcos officer has officially been charged


SAN MARCOS, Texas (KXAN) — The man accused of shooting and killing a San Marcos police officer, who was serving a warrant at his home, has been booked into the Hays County Jail Thursday by proxy.

Stewart Mettz, 51, faces a capital murder of a peace officer in the shooting charge, along with assault and injury to an elderly person charges.

Officers arrived at his San Marcos home at 177 Valero Dr. at 2:23 p.m. Monday to serve a warrant on those last two charges — which alleged Mettz hurt his wife and mother-in-law in two separate incidents over the past few months. Officers knocked and Mettz opened the door and began shooting, according to an affidavit. Officer Kenneth Copeland was shot twice in the chest and later died.

“I am so sorry for the loss of this police officer, he died in my place, he died in my daughter’s place,” said Mettz’ mother-in-law Brenda Sinclair. “We are alive and I feel very bad. I’m grateful that we are alive, but I feel very bad that this happened. I didn’t expect it.”

Mettz was also hit in the side by return fire and taken to the hospital. As of Thursday morning, Mettz remains in fair condition at St. David’s South Austin Medical Center. The city of San Marcos says he will be booked into the county jail when he is released from the hospital. In the meantime, he is being watched by officers 24 hours a day.

KXAN could find no criminal record for Mettz in Texas, aside from a minor ticket for blocking a handicap access, which was dismissed in 2016.

Since he left the military, Sinclair says Mettz was never mentally stable. “We would be in the truck and he would start talking to himself, he would talk to the TV, say that Jesus tells him things to do,” she said. “He was always talking to himself about killing people, military stuff.”

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