The District’s final killing of 2012 was over two stolen bottles of PCP, according to D.C. police.

That’s according to police who charged a teenager Wednesday with first-degree murder in the Dec. 30 shooting death of Angelo A. Payne in Southeast Washington.

Authorities said the 23-year-old victim and the suspect, identified as Khari N. Williams, knew each other for more than a year. But police said the apparent theft from a drug stash on Croffut Place came between them.

D.C. police had initially said Wednesday that Williams was being charged as a juvenile. But prosecutors with the U.S. attorney’s office charged him as an adult. Williams, of Southeast Washington, was arraigned on his 18th birthday.

In a charging document filed in D.C. Superior Court, police said that Payne had bought PCP from Williams. The documents say that Williams later checked his inventory and discovered that he was short two vials of the drug, a hallucinogen that can cause violent mood swings.

Police said that shortly after midnight Dec. 30, Williams summoned Khari to the alley off the 3400 block of Croffut Place SE and asked him about the missing drugs. “When the decedent did not answer fast enough, Khari stated that he shot him,” the court documents say.

A witness told detectives that they saw Khari moments before and after the shooting wearing a black open-face ski mask, a black Helly Hansen jacket and black Helly Hansen ski pants. The witness told police of hearing three shots from the alley.

The designer jackets are popular in and around D.C. and have been targets of numerous robberies, including one that turned deadly in November at the Woodley Park Metro station.

The shooting of Payne was the 88th homicide in the District last year, the lowest count in a half-century.