04/26/2017 - Report #637 - Victims: Calvin Lamont Walker, Andrew Lee Green and Marquise Jamar Cooper - Location: Pine Lawn, MO
MCS Report #637
Classification: Homicide
Requesting Agency: North County Police Cooperative
Date of Activation: 04/26/2017
Commander and Department: Lt. Dan Biermann, Florissant PD
Commander and Department: Lt. Matt Nighbor, Maplewood PD
Deputy Report Officer and Department: Maj. Steve Runge, North County Police Cooperative
Deputy Report Officer and Department: Det. Katy Styer, St. Louis County PD
Victims: Calvin Lamont Walker, Andrew Lee Green, and Marquise Jamar Cooper
Suspect(s): Unknown
The North County Police Cooperative requested the assistance of the Major Case Squad in the investigation of the deaths of Calvin Walker (age 29), Andrew Green (age 29), and Marquise Cooper (age 23). At approximately 10:13am, police officers were dispatched for a shooting in the 4500 block of Rosewood Avenue in Pine Lawn. Calvin, Andrew, and Marquise were all located with apparent gun shot wounds. They were all pronounced dead on scene. One victim was located inside a black SUV, one victim was located nearby on a sidewalk, and one victim was located in a yard.
Investigators are looking for a white older-model Chevrolet Impala with a black spotlight and a black Nissan Altima. An exemplar photo of the Impala is shown.
Anyone with information in this case is asked to contact CrimeStoppers at 866-371-TIPS (8477).
