Graham Karber, 26, was booked into the Pima County Jail on Sunday, Oct. 19, 2014 on first-degree murder charges in connection with the death of his roommate, Amanda Vinson, 29, at their residence on East Fifth Street near North Fourth Avenue. Karber cut his long hair and beard at some point after the slaying, police said.

Tucson Police Department arrested 26-year-old Graham Karber Sunday for the Friday night homicide of a woman in a downtown area home.

Police officers responded to a scene in the 400 block of East Fifth Street near North Fourth Avenue at around 8 p.m. on Friday night after receiving a 911 call from a man saying that he found Amanda Vinson, 29, dead inside the home, according to Sgt. Chris Widmer, a police spokesman.

Vinson showed "obvious signs of trauma," Widmer said in a news release.

Detectives concluded that Karber and Vinson lived together at the home on Fifth Street as roommates. The cause of Vinson’s death has not been determined yet, but detectives determined that Karber was responsible for the murder, police said.

At about 9 a.m. on Sunday, Oct. 19, a TPD officer found Karber during a follow-up investigation. The suspect fled on foot but after a short chase, was taken into custody without incident.

After murdering Vinson, Karber cut his hair and beard, police said.Β 

Detectives asked anyone who has spoken to Karber after the murder to contact 911 or 88-CRIME.

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Contact reporter Yoohyun Jung at 520-370-3053 or yjung@tucson.com. On Twitter: @yoohyun_jung.