Police say a 75-year-old man in Dallas is being charged with Capital Murder after he allegedly shot and killed two neighbors because they had dumped dog feces on his porch. According to The Dallas Morning News, Chung Kim had repeatedly complained to management at Sable Ridge Apartments that Michelle Jackson and Jamie Stafford, who lived above him, had dumped dog feces on his porch and allowed their dog, Selena, to urinate on the upstairs balcony which dripped down to his patio.

Tension finally boiled over on Monday when Kim was on his patio and shot 31-year-old Jackson multiple times as she stood on the patio above him, police said. He then reportedly went upstairs and shot Stafford, who was also 31, as he was trying to escape. After Stafford fell from the second floor, Kim is accused of going back downstairs and shooting him again. Resident Yoland Washington said that three of the couple’s children were away from home at the time of the shooting, but an infant had been in the apartment.

“When they come home today, their mother and their father is gone,” Washington lamented. “Little baby — they call the newborn Little Mama — Little Mama is not going to never know her parents. She’ll never know her parents. Never.”

Neighbors told the Morning News that Jackson had volunteered about 30 hours a week for AmeriCorps VISTA, helping to combat poverty. She also tutored disadvantaged children through the nonprofit Dallas Community Lighthouse. Local AmeriCorps director Keven Vicknair said that Jackson had been going to school for a degree in education.

Child Protective Services took temporary custody of the 1-month-old child, but all of the children are now staying with relatives. The couple’s dog is being adopted by a neighbor