Stevie Ray Puente is “the missing piece of the puzzle” in the Brownwood Police Department’s investigation of the Avenue D shooting last month.

Detective Robert Mullins said he hopes Puente, 22 — named in a warrant for murder and aggravated assault — will fill in some of the puzzle’s blanks when police find him.

Mullins said police don’t know all of the events that led up to the shooting, which happened around 2:30 a.m. on Nov. 10 at 1812 Ave. D. Joseph Felkner, 34, was killed, and Brandi Eckenrode, 20, and David McGary, 30, were wounded.

“We can’t determine the total reasoning for all of it,” Mullins said.

Puente fled out a back door after the shooting, police have said. “He’s still missing,” Mullins said. “We’re searching where his home is.”

Puente is from Fort Worth and has family there, and police think he might be in that area, Mullins said.

Police believe Puente was one of two gunman in the shooting. Police believe Puente’s cousin, Andrew Vasquez, also fired shots. Vasquez was arrested at the scene of the shooting and remains in the Brown County Jail.

Witnesses have told police there was an argument “over a narcotics transaction” involving the occupants of the house and the people who were shot, a complaint filed in Precinct 3 Justice of the Peace Bryan Thompson’s office states.

But that argument occurred several hours before the shooting, police have said. Mullins said detectives have not substantiated whether the argument actually involved narcotics, and he would not comment on whether detectives believe the shooting was over narcotics.

Police have said Felkner, Eckenrode, McGary and a fourth person, Jessie Cadena, were at 1812 Ave. D around 8:30 the night of Nov. 9, a Friday.

They left after an argument, and returned around 2:30 a.m. Nov. 10, police have said.

After the four drove to the house, Felkner and McGary walked to the front door and Eckenrode walked up a short time later, police have said.

McGary told police that Felkner and Vasquez “were having a discussion just inside the doorway,” the complaint states. McGary said he and Felkner were backing away from the front door when the shooting started, and McGary was shot in the buttocks while retreating, the complaint states.

Valerie Perez, one of the occupants of the house, told police she saw her boyfriend — Vasquez — and Puente with handguns, the complaint states. Perez “believes Felkner stepped forward and she heard several gun shots …” the complaint states.

Eckenrode and McGary have been released from Brownwood Regional Medical Center.

Vasquez is charged with murder, aggravated assault, hindering apprehension and tampering with evidence, jail records state.

Perez was also arrested, on charges of hindering apprehension and tampering with evidence, and is free on bond.