29-year-old Lawrence Wach, of Troutdale, Oregon, was cleaning his handgun in the living room of his apartment when he unintentionally discharged the weapon.
The bullet traveled through three apartments before finally stopping. A 26-year-old woman who was sitting on the coach in the apartment next to Wach's was injured by falling drywall when the bullet tore through her apartment. She said the bullet came within a foot of her as it continued into the next apartment.
No one was home in the apartment where the bullet landed.
Wach was arrested and charged with reckless endangerment.