Darrell Antonio Crowder pleaded guilty to malice murder and possession of a firearm during the commission of a felony Monday in connection with the 2008 killing of his estranged wife, 43-year-old Catcilia.

The murder took place in the early morning hours of Jan. 16, 2008. At the time Crowder was at work at a post office distribution room in Atlanta and he and Catcilia had been exchanging angry text messages, according to reports. Authorities said that Crowder left work and drove to Catcilia’s home in Newton County.

According to reports Crowder kicked in the back door of his estranged wife’s home and fired shots in her direction. As she ran from Crowder, he followed her, and when she fled into a bathroom inside her bedroom, he fired through the door, striking her in the shoulder. He then forced his way into the bathroom and shot her twice more in the head. After that, Crowder returned to work, according to investigators.