Police in Roswell continue to search for a man they are now saying is a suspect in the killing of his parents inside their home Monday.

Authorities secured an arrest warrant for 30-year-old Duane Hall on Thursday afternoon. He has been charged with two counts of murder in the deaths of his parents, Delroy Hall, 70, and Murline Gregory-Hall, 60, Roswell police spokesman Officer Tim Lupo said.

Investigators are asking for the public’s help in locating Hall. He is 5-foot-11 and weighs about 165 pounds. He is believed to be driving a dark silver 2019 Toyota Camry with Georgia tag RSC5623, which police said was taken from the scene of the killings.

Police are asking the public to be on the lookout for a dark silver 2019 Toyota Camry with Georgia tag RSC5623, which Hall is believed to be driving.

Credit: Roswell Police Department

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Credit: Roswell Police Department

On Monday, officers found Delroy Hall and Murline Gregory-Hall stabbed to death at their home in the 1000 block of Barrington Landing Court off Old Alabama Road shortly after 11 a.m., Lupo said.

At the time, the three were living together at the home in the Roswell Glen subdivision, Lupo confirmed.

Lupo added that Hall “was known to the Roswell Police Department” prior to the killings.

Anyone with information on Hall’s whereabouts is asked to contact the Roswell Police Department at 770-640-4100. Tipsters can remain anonymous, and be eligible for rewards of up to $2,000, by contacting Crime Stoppers Atlanta at 404-577-8477, texting information to 274637 or visiting the Crime Stoppers website.

— Please return to The Atlanta Journal-Constitution for updates.

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