Lonell Johnson was 19 when he was killed on August 6, 2012, in St. Louis, Missouri. The St. Louis Metropolitan Police Department recorded the fatal incident at 5476 Genevieve Avenue under police incident number 12040319, and the case appears in a homicide database compiled from those department records.

Few details about the circumstances have been released. Records do not say what led to the fatal encounter, whether Johnson was specifically targeted, what weapon was used, or whether witnesses identified a suspect. The case was listed as open in the published homicide records and no reliable public information was found naming a suspect or confirming an arrest, charges, trial, plea, or conviction connected to his death.