Last month 17-year-old Wenatchee High School student Mackenzie Cowell disappeared after she left a beauty school class at the Academy of Hair Design. Four days later she was found along the Columbia River at Crescent Bar.

Through their investigation detectives in Wenatchee, Washington have figured out that Mackenzie was at the Wenatchee Riverfront Park boat ramp area later on the same day she was last seen. A task force was assembled to find her killer and a $40,000 reward is being offered for information that leads to a conviction in the murder of Mackenzie Cowell.

According to the death certificate Mackenzie died from manual strangulation and stab wound to the neck with blunt impact to the head a significant contribution.