Phoenix ? Hours after a woman’s decomposing body was discovered in a backyard camper, police arrested a man who sometimes lived there in connection with the deaths of at least five prostitutes found dumped in the neighborhood over the past nine months.

Police said the man arrested Saturday, Corey Morris, 24, admitted involvement in five deaths, including the body his uncle found in the RV. He was being held on suspicion of murder and charges were pending.

Since July, the bodies of six women have been found in the Garfield neighborhood north of the Arizona Diamondbacks’ stadium — just blocks from Phoenix’s red light district on East Van Buren Street.

Autopsies on four of the women show they died of cocaine overdoses.

“We believe Morris was basically picking up the women on Van Buren Street, taking them back to the RV, having sex and doing cocaine,” said Phoenix Police Detective Tony Morales.

Morales said he could not yet discuss how the women were killed, but said investigators are certain the deaths are homicides.

Ron Willis, Morris’ uncle who owns the property where the camper is parked, said he called police Saturday after finding the body beneath blankets and a sleeping bag. He said he was in shock at the possibility of his nephew’s involvement.

“I’m trying to piece everything together,” Willis told The Arizona Republic.

Morales said police acting on an earlier tip had already been looking for Morris, who periodically stayed in the RV. He was arrested at a nearby bar, where he worked as a karaoke disc jockey.

Morris moved to Phoenix just over a year ago from Oklahoma, police said. The RV had Oklahoma license plates.

“Over the next weeks and months we will have to explore where Morris has been and where he’s come from,” Morales said. “There’s a possibility, a chance this may have been happening somewhere else.”

The deaths were initially treated as random drug overdoses in a neighborhood known for drug-dealing and gang violence.

The first body, that of Janice Irvin, 43, was found July 14. Barbara Codman, 46, was found dead in a nearby alley Sept. 11.

One month after Codman’s death, police found the body of 32-year-old Shanteria Davis just yards away. The proximity to Codman’s and Irvin’s bodies and the similarities in their deaths caught investigators’ attention.

On Feb. 27, Jade Velasquez’s body was found under a palm tree. On March 29, Sherry Noah, 37, was found dead across the street from a church.

All five bodies were found within two blocks of the RV where Morris stayed.

The death of a woman whose body was found Dec. 9 just a few miles south of the neighborhood is no longer believed to be connected to the case, Morales said.