"They've done everything in the world for (Lisa)," the neighbor said.
His wife, Gina, 48, also a Tulsa police officer, was jailed on an accessory to murder complaint.
The two weren't on duty at the time the shooting of 19-year-old Jeremy Lake occurred in the 200 block of North Maybelle Avenue about p.m. Shannon Kepler works at TPD's police academy and worked Tuesday, public information officer Jillian Roberson said.
A second neighbor, who also asked for anonymity, said he was "tickled to death" two police officers lived nearby because it made the neighborhood feel secure.
The neighbor said he didn't have a lot of interaction with the Keplers, whom he called "the perfect neighbors," but that Gina Kepler sometimes would stop in her patrol car and say hi to him.
Lisa Kepler said she told authorities it was her dad who was the triggerman.
"I'm not scared of my dad," she said, in tears and openly wondering why he would shoot someone he didn't know.
Josh Mills, 23, a friend of Lake's, said he was also at the scene during the shooting.
He said Shannon Kepler also fired a shot at Lake's 13-year-old brother, who was sitting on the front porch.
She said Lake was a sweet man and had been nothing but good to her since they had met.