It began, police say, as a dispute among neighbors in Abilene, Tex. Two families argued about where to dump trash in an adjacent alleyway. Insults escalated to threats, and a father and son, both armed, allegedly shot and killed a 37-year-old man who lived next-door in an encounter that was captured on camera.

Police have arrested the shooters, 67-year-old John Miller and 31-year-old Michael Miller, who have been charged with murder in the death of Aaron Howard.

The Sept. 1 standoff between the neighbors, which ended in the fatal shooting, was the final argument in a days-long feud over trash disposal, said Abilene Police Chief Stan Standridge, speaking at a news conference about an hour after the incident.

“It’s been going on for a couple days, and it culminated in today’s violence,” Standridge said.

Howard was killed in front of his brother and his common-law wife, Kara Box, who recorded the encounter on her cellphone. The Fort Worth Star-Telegram published the footage on Thursday, which gives a rare glimpse into a deadly dispute and sheds new light on a weeks-old killing.