On May 10th, US Marshals and Mesa Police found Steson L. Crider after a brief surveillance.
Crider was arrested at a motel in Mesa near Country Club Drive and U.S. 60, ending a six-week manhunt. During the arrest, police found a gun and drugs in Crider's room.
Crider was wanted for the March 28th fatal shooting of 12-year-old Ray Humphrey, Jr. in Quincy, Illinois. He allegedly walked up to the boy who was waiting for a ride and shot him in the head.
There is still no word on a motive.
Police in Illinois believe others may be involved in this case as well and arrested Crider's parents. The Herald-Whig reports that Stefan K. Crider Jr. and his wife, Julia, were charged Tuesday with four counts of conspiracy to commit obstruction of justice. Stefan Crider III is charged with five counts of obstruction.
Authorities claim Stefan Crider Jr. and Julia Crider helped their sons, Stefan Crider III and Steson Crider, flee Illinois after the shooting by providing them with money and a vehicle. Stefan Crider III allegedly helped his sibling get rid of a gun in Missouri.
The Crider family's next court date will be on June 3.
The Associated Press contributed to this report.