Police have arrested a suspect in the shooting of Molly Conley, the 15-year-old Lake Seattle, Washington girl who was shot and killed back in March. Conley was shot in the neck during what appears to have been a random drive-by shooting. She was a straight-A student and a lacrosse player at Blanchet High School in Seattle.

Snohomish County police have arrested 26-year-old Erick Walker in connection with the crime. Police suspect Walker of six drive-by shootings the night Conley was killed. Walker was arrested Friday, June 28 on five counts of 2nd degree assault with a weapon, four counts of drive-by shooting, and one count of 1st degree murder.

The Snohomish County Sheriff’s Office were able to track the crime to Walker by connecting the suspect to another incident that occurred the night of the murder. Police sated that at least 12 witnesses saw a vehicle similar to Walker’s at a hit-and-run/shooting incident that night. His car was found to have been damaged in a way consistent with the hit-and-run. In addition, crime lab analysis of the ammunition used in the shootings found that Walker had recently purchased a gun that is one of several possible types that may have been used.

Though police do not currently have evidence that Walker had accomplices, the murder and shootings remain under investigation.