KENT, Wash. - A 17-year-old boy who was charged as an adult in the slaying of a teen girl told officers he’d felt an urge to hurt someone, detectives said.
King County Prosecutors said that on March 17, Kolby Clark fatally stabbed Jasmyn Tully, also 17, beginning the attack while she was sleeping at a Tukwila apartment.
Detectives said after changing his story several times, Clark told them he'd felt an urge to hurt someone.
They said he began to strangle Tully, then, after she struggled, he stabbed her, slashing her throat.
At a vigil the night after the killing, the victim's uncle was struggling with the questions of why she was killed.
“That's really the troubling part is why. She had so much promise. We really thought she was beginning to turn the corner,” said Dave Tully.
Police said the defendant admitted to cutting himself on the wrist to support his story that someone else had attacked the victim.
Clark pleaded not guilty to second-degree murder at the Kent Regional Justice Center, where he is being held on $1 million bail.
Friends and family of the victim who were in court Monday were visibly shaken.
"It was really hard to watch this today, but there's nobody to speak for my daughter except us now," said Tully's father, Stephen Tully.
Tully's family said they plan to attend every hearing and every day of the trial.
"I know that a sleeping, 115 pound, 5 feet 4 inch tall girl has no defense against anybody. And I don't care what his excuses are," said Tully's father.
Since Clark will be tried as an adult he faces a stiffer sentence. If found guilty of second-degree murder, he could be sentenced to 20 years in prison.