A man was shot on Monday during an altercation at a Public Storage facility in Lawrenceville, Ga. According to the Gwinnett County Police Department, a 95-year-old woman was at the self-storage facility with her son and daughter when an unknown man parked nearby and began pacing and staring at them, the source reported.

During an ensuing “verbal altercation,” the older woman tried to calm the situation but was allegedly shoved by the stranger, police said. At that point, the woman’s son, described as being in his 60s, retrieved a gun and told the man not to assault his mother. When the man came toward the son, he fired one shot that struck the stranger in the upper torso, according to police.

The son told investigators he acted in self-defense. The man who was shot is in serious condition, according to the source. The 95-year-old woman wasn’t injured.

Police indicated they didn’t plan to charge the son but are reviewing video-camera footage of the incident.

Public Storage Inc. lists three self-storage facilities in Lawrenceville on its website. Based in Glendale, Calif., the real estate investment trust has interests in 2,266 self-storage facilities in 38 states, with approximately 147 million net rentable square feet. Operating under the Shurgard brand name, the company also has 217 facilities in seven European countries, with approximately 11 million net rentable square feet.

Sources: