12/12/2025 - Report #839 - Victims: Bruce A. Mason and Laniya Joyce White - Location: Cahokia Heights, IL

MCS Report #839

Classification: Homicide

Requesting Agency: Cahokia Heights Police Department

Date of Activation: 12/12/2025

Commander and Department:  Capt. Rob Thomason, Belleville PD

Deputy Report Officer and Department: Investigator Jake Svoboda, Madison County Sheriffs Dept

Deputy Report Officer and Department: Det. Danny Allison, Shiloh PD

Victims: Bruce A. Mason and Laniya Joyce White

Suspect: Shawn L. Williams

The Cahokia Heights Police Department requested the assistance of the Major Case Squad in investigating the deaths of Bruce Mason (age 67) and Laniya White (age 44).

At approximately 9:06pm, officers responded to the 3900 block of Walnut Street for a report of a man shot inside a vehicle. Officers discovered Bruce Mason had been shot inside a vehicle. He was transported to an area hospital where he was pronounced dead.

During the execution of a search warrant at a nearby residence, Laniya White was discovered deceased inside the residence from gunshot wounds. She was pronounced dead on scene.

As a result of this investigation, Shawn Williams (age 54) was charged with 2 counts of Murder with Intent to Kill or Injure in the deaths of Bruce Mason and Laniya White.

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PastKathy Effan