Store surveillance cameras led police to Holden, KXAS reported.
According to police, Holden used Thomas' debit card after she was killed, the television station reported. Thomas' doorbell camera also caught Holden walking into the woman's home about 4 p.m. Thursday, wearing gloves and the same clothing that he was wearing when at the store, according to KXAS.
Holden worked for Spectrum but was off-duty at the time of the slaying, according to KTVT. He has since been fired, the television station reported.
A Spectrum spokesman released a written statement to WFAA, writing, "This is a terrible tragedy and our thoughts are with the victim and her family and friends. We are actively working with Irving police as they conduct their investigation."