(KMOV) -- A man faces charges for his alleged involvement in a shooting that left two people dead in St. Louis County.
Marquis McKinney, 19, was charged with murder and armed criminal action.
According to police, McKinney shot and killed two people in the 1600 block of Vassier in Wellston on March 1.
According to reports, Wellston officers later found the two victims dead and requested the St. Louis County Police Department take command of the investigation.
After further investigation, St. Louis County Police Department detectives arrested McKinney on Sunday.
The St. Louis County Police Department is still searching for Davion Henderson, 18, who's considered a person of interest in the case.
Officers believe Henderson should be considered armed and dangerous.
The investigation is ongoing.