Stewart Mettz mug shot. Courtesy/Hays Co. Jail

SAN MARCOS, Texas -- Neighbors of the suspect in the shooting of a San Marcos police officer after an hours-long standoff said that they were horrified to learn it happened so close. 

The body of Officer Kenneth Copeland is back in San Marcos after being transported from the medical examiner's officer in Austin. Authorities said Copeland was serving a warrant on Stewart Thomas Mettz Monday afternoon when he was shot and killed.

Mettz remains in the hospital. Neighbors say they knew him and said he was a military veteran. They also said they are surprised to learn that Mettz was suspect in the shooting.

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"He's the last one I would expect to do this. Because he seemed extremely normal, he would walk up and down with his dogs, and ride his bikes, he and his wife. He seemed pretty friendly. We talked to them a couple times, and completely normal,” said neighbor Stephanie McGlothlin.

Hays County District Attorney Wes Mau said that domestic violence charges will be filed once Mettz is out of the hospital and served the warrant officially. Mettz is charged with capital murder of a peace officer. 

Copeland was a 19-year veteran of the force. He leaves behind a wife and four children.