WENATCHEE, Wash. -- Investigators arrested a second person Wednesday night in the murder investigation of MacKenzie Cowell, a Wenatchee teen who was found strangled and stabbed to death along the Columbia River in March 2010.
A close friend of defendant Chris Wilson was arrested at a Tumwater residence and transported and booked into the Chelan County Regional Justice Center.
Investigators first questioned the suspect in October after Wilson was arrested. DNA evidence linked Wilson to the location where Cowell's body was found near Crescent Bar on February 13th.
The suspect initially told investigators she didn't recall the events in February and had no information in Wilson's involvement in Cowell's murder. But police later found videos and pictures that suggested she did.
Police seized computers from Wilson's apartment containing images depicting the suspect posing on the floor of the apartment in the same spot where investigators found a blood stain. Lab results confirmed the stain contained Mackenzie's blood, and police said it appeared the suspect was posing as a dead person.
Investigators also served a search warrant on the suspect's cell phone and found two videos of interest. The first, recorded on June 26th, depicted the suspect entering Wilson's apartment, moving aside a coffee table in the living room, and focusing the camera on the stain lab tests later determined was the dried blood of Cowell.
The second video recorded four days later depicted Wilson asking the suspect if the apartment is clean. The suspect replies, "Considering what happen…ing?" At the end of the video, the suspect focuses the camera on the location of the rug where the blood stain was later found by investigators. The videos corresponded with the time frame Chris Wilson moved out of the apartment.
Based on the evidence, investigators determined the suspect rendered criminal assistance to Wilson and obstructed investigators in the murder investigation.