Tom Clements Death: Thomas Guolee, member of white supremacist gang, arrested in Colo. prisons chief probe

(CBS/AP) COLORADO SPRINGS, Colo. - Police arrested a second white supremacist prison gang member Thursday whose name surfaced during an investigation in connection to the slaying of Colorado's prisons chief.

PICTURES: Colo. prisons chief shot and killed at home

Thomas Guolee, 31, was arrested around 5:30 p.m. Thursday, according to El Paso County sheriff's officials. He was being held without bond for a parole violation.

Investigators said Guolee isn't a suspect in the shooting death of Colorado Department of Corrections head Tom Clements, but his name, along with 47-year-old James Lohr's, came up during the investigation. Both Guolee and Lohr were identified as fellow members of the 211 Crew.

Authorities issued an alert last week for law-enforcement officers to look out for both men, who had outstanding warrants unrelated to Clements' death.

Lohr was arrested on April 5 in Colorado Springs after a short chase and is now being held on charges including vehicular eluding. His bond was set at $250,000.

Parolee Evan Ebel is the only suspect named in the deaths of Clements, who was shot when he answered his front door on March 19, and of Nathan Leon, a father of three who was shot while working as a pizza deliveryman on March 17. Ebel later died in a shootout with Texas authorities.

Authorities haven't released details of how Guolee and Lohr came up in the investigation into Clements' death, but they believe Lohr was in contact with Ebel days before the killings.

Guolee's mother, who urged her son to turn himself in, told The Denver Post she was relieved by his arrest. "My heart was just breaking because I thought I'd be getting a call that he was dead," Deborah Eck told the newspaper.

Complete coverage of Tom Clements on Crimesider