Lyle Robert Kastner, 57, was fatally shot on July 18, 2009, in San Antonio while working as a security guard for San Antonio Investigations & Security at the I-35 Bingo Hall. Around 10:30 p.m. he was escorting a manager to her car when an armed, masked assailant attempted to rob the woman. Kastner intervened and was shot in the chest; he was pronounced dead at the scene. The attacker took Kastner’s .40 caliber semi-automatic handgun and fled on foot. Investigators recovered a spent nine-millimeter shell casing, indicating the assailant may have used an additional weapon.

The San Antonio Police Department asked for the public’s help and Crime Stoppers offered up to $5,000 for information leading to an arrest; Kastner’s family, the security company, and the bingo hall’s management added $6,900. Colleagues and patrons remembered Kastner as a dedicated, well-liked security officer who was trying to protect others. If anyone knew something about that night or the person responsible, will you come forward with information?