A dispute over money at an illegal marijuana grow operation west of Hennessey, Oklahoma, ended in a mass killing on the evening of November 20, 2022. Inside a garage on the 10-acre property, 60-year-old Chinese national Chen He Chun and three coworkers were shot dead after a former employee returned to the farm and demanded an immediate return of a $300,000 investment. When the workers could not produce the money, the attacker opened fire and shot the victims in what investigators described as mafia-style executions.

The suspect, identified as 45-year-old Chinese citizen Wu Chen, had previously worked at the grow. A fifth worker, Yi Fei Lin, was seriously wounded but survived. Wu Chen fled and was captured two days later in Miami Beach after a vehicle tag reader flagged his car; he was extradited to Oklahoma and charged in Kingfisher County with four counts of first-degree murder and one count of assault and battery with a deadly weapon.

If anyone knew the victims or has information about the operation or the events that night, please share what is known.