KANSAS CITY, Kan. (AP) — A 20-year-old man has been charged with capital murder in the death of a Kansas City, Kansas police officer who was fatally shot while investigating a drive-by shooting. Wyandotte County District Attorney Jerome Gorman said Thursday that he filed the murder charge Thursday against Jamaal Lewis in the death two days earlier of 46-year-old Captain Robert Melton. Lewis also faces charges of aggravated assault and criminal discharge of a weapon from an incident prior to the shooting of Melton. Eighteen-year-old Daqon Sipple is charged with aggravated assault of a law enforcement officer and criminal discharge of a weapon. It's unclear if Lewis and Sipple have lawyers yet. Authorities have said they don't believe Melton's death was a planned ambush. Melton was a 17-year veteran of the department.