Tuesday afternoon, Kennewick officers located and arrested a 17-year-old Southridge High School student in connection with last Sunday's fatal shooting in East Kennewick.

The student was located, and described as a person of interest by police. Another 17-year-old is already in custody in the death of 20-year-old Andrea Nunez.

She was found lying in the road near 7th and Gum suffering from a gunshot wound around 4am. She was pronounced dead at the scene.  Police are still looking for 22-year-old Ezekiel Sanchez of Kennewick. Police say the shooting was gang related.

The teen who was arrested at SHS is facing 2nd Degree Murder charges. One of the persons arrested, according to reports, is Adrian Mendoza. Court documents indicate Nunez was walking with her boyfriend when they heard someone yell at them "westside."  Nunez reportedly yelled back "southside" and was then shot in the back.

Mendoza will be charged as an adult, according to court documents.