An 18-year-old man charged with killing a teenage girl a year ago because he “felt an urge to hurt someone” pleaded guilty Tuesday to second-degree murder with a deadly weapon.
Kolby Clark faces a sentencing range of 12-20 years when he is sentenced on April 12. Prosecutors plan to ask that he receive a sentence of 16 years, said Dan Donohoe, spokesman for King County Prosecutor Dan Satterberg.
Victim Jasmyn Tully, 17, of SeaTac, was visiting a friend at an apartment in Tukwila when she was attacked by Clark.
Tukwila police were called to the apartment in the 11600 block of 42nd Avenue South just after 2:30 a.m. on March 17, 2012, for a report of a woman bleeding and unconscious. Officers and medics found Tully with a stab wound to the left side of her neck and what appeared to be “defensive” wounds to her right hand, according to a police report.
The girl died after being taken to Harborview Medical Center.
Residents of the apartment told police that Tully and the suspect had been spending the night at the home. They said the suspect was gone when Tully was found.
Investigators searched for Clark and found him a few blocks away was walking in the street and not wearing shoes. He also had a cut on his left wrist, according to the police report.
Investigators said Clark told them he had been attacked by a man on the street who was dressed all in black and wearing combat boots. The same man, he said, chased him out of the apartment, according to the police report.
K-9 officers searched for the alleged assailant, but found no one matching that description. Investigators say Clark changed his story to say that he attacked Tully and cut himself, the police report said.
Clark told police that after Tully fell asleep he had “felt an urge to hurt someone,” the police report said.
Police said the teen showed them where he discarded the knife.
Clark’s family told The Seattle Times after his arrest that he had been smoking synthetic marijuana that night.