The gunman accused of shooting dead a man folding clothes with his wife in a Brooklyn laundromat has been arrested — and detectives are investigating whether he used a tracking device to pinpoint his victim, a police source said Wednesday.
Adolphus Black, 57, was charged Tuesday with murder and gun possession for the May 25 killing inside XPress Laundromat on Utica Ave. near Ave. J in Flatbush.
Black killed his target, Kevon Lee, 41, and grazed an innocent 58-year-old man nearby in the foot, police said.
Lee, struck in the chest and stomach, was rushed by medics to Kings County Hospital, where he died a half-hour later.

“He was ambushed,” Lee’s wife, Khilifah Pierre, said at the time, her shirt still soaked with her husband’s blood. “We were doing laundry. [Kevon] was facing me and we were just talking.
“[The shooter] came from behind my husband’s back and started shooting.”
As Lee, the father of their three children, collapsed, his wife tried in vain to save him with chest compressions and holding up his head, “but he was not responding,” she said.

Inside Lee’s car, the source said, police found an air tag, a tracking device that is being used more and more by criminals, police have said.
An NYPD source said detectives are trying to determine if Black used the air tag to figure out Lee’s location as he planned to kill him.
A motive for the shooting was still unclear, the source said.

Members of an NYPD Regional Fugitive Task Force located and arrested Black near his home in Brooklyn early Tuesday after he was identified as a suspect in the killing, police said.
His arraignment in Brooklyn Criminal Court was pending Wednesday.
Lee, who lived a half-mile from the laundromat, had three arrests for unauthorized use of a motor vehicle, all from more than a decade ago, police said. Black, who lives in Brownsville, has five prior arrests dating as far back as the 1980s — three for robbery and one each for assault and marijuana possession.
Last month, two men were indicted by the feds, accused of using a tracking device to hunt down and kill a man in front of his mom in the Bronx.