PITTSBURGH — A Pittsburgh man arrested a third time on drug and weapons charges stemming from a police search three years ago is a suspect in a cookout ambush last month that killed five adults and an unborn child, a detective testified Thursday.

Allegheny County Detective Steve Hitchings testified at a bond hearing that Robert Thomas is a suspect in the March 9 cookout shootings in Wilkinsburg and has been told he’s a suspect, a Pittsburgh television station first reported Thursday.

Common Pleas Judge David Cashman agreed with the prosecution and found that Thomas was a danger to the community and a flight risk and revoked his bond, meaning Thomas will be jailed while the drug charges are pending.

Hitchings’ testimony was the first time any law enforcement official has named a suspect in the cookout shootings.

The 27-year-old Thomas and three other people were arrested Wednesday night on drug and weapons charges stemming from the search of a home in Wilkinsburg in February 2013. All four were questioned about the cookout shootings, but they haven’t been charged in it.

Defense attorney Casey White said he’s not sure why Thomas is being questioned or called a suspect in the killings.

“I can’t really comment on the specifics of what the commonwealth’s investigation is,” White told The Associated Press. “I just know my client is innocent of any wrongdoing as to the homicides that occurred on March 9 of this year.”

Chanetta Powell, 25, who was 8-months pregnant; and four others, Jerry Shelton, 35; Tina Shelton, 37; Brittany Powell, 27; and Shada Mahone, 26, were slain during the backyard cookout. Powell’s unborn child also died.

One gunman walked up an alley near the backyard and fired shots from a .40-caliber pistol toward about 15 cookout guests, who then ran toward the back door of the home for cover, authorities say.

They were then mowed down by a second gunman firing an assault-style rifle, which also critically wounded Lamont Powell, 24, who District Attorney Stephen Zappala Jr. has said may have been the intended target.