Duncan Edward Kaulbach

Deadly force

Gwinnett County police officers were sent to investigate reports of a domestic disturbance. A Lawrenceville woman told police her ex-boyfriend was after her and had threatened to kill himself. She also said he may have a gun. Kaulbach of Bethlehem confronted the woman at her residence, police said. After the encounter, officers found Kaulbach in a grocery store's parking lot. Officers kept Kaulbach in the parking lot, but his combativeness prompted police to call out the SWAT team, police said. During the standoff, Kaulbach continuously threatened to hurt himself and repeatedly placed the handgun to his head. A SWAT officer shot and killed Kaulbach after he pointed his gun at police.