Detectives said Garland Taylor’s killing was gang-related.Officers found Taylor shot in the head in the 900 block of Anderson Street. He died Monday at University Hospital.None of those arrested is facing a homicide charge, and a warrant hasn’t been issued for any suspected triggerman, Police Chief Kevin Kelso said.But warrants were issued for engaging in organized criminal activity with the intent to commit aggravated assault, a first-degree felony.Two of those named, Jordan Sheffield, 19, and Justin Gonzales, 21, are still being sought.In custody at the Guadalupe County Jail are Darrell Sheffield, 23; Timothy Dailey, 18; Gregory Popham, 19; David Buitron Jr., 37; Christopher Buitron, 23; and Mark Buitron, 22.Police also arrested a juvenile male whose name was not released.In a news release, Kelso said the Crips and the Mexican Mafia were the gangs involved and said police have not identified gang affiliations for all those charged. He said fears of retaliation among witnesses is making the investigation difficult but that more arrests are expected.