Authorities have released a third image of Gardner’s suspected wife killer Aaron Pennington as they continue to seek the public’s help in locating him.

The image released Thursday appears to show Aaron Pennington as captured by a doorbell-type home camera and is watermarked as having been captured on Oct. 11.

This is the third image officials have released in their search for Pennington, 33, since they started their manhunt for him Sunday after discovering the body of his wife, Breanne Pennington, 30, on their bed in their home at 42 Cherry St. that morning. She had at least one visible gunshot to her head according to an arrest warrant affidavit and the casings of three bullets were found in the home, but no gun.

“Don’t say anything. Be quite (sic) If she wakes up just say you’re getting nasal spray Get on side of bed — very close proximity to head Put hole in her head,” Aaron Pennington allegedly wrote in a note on his phone the evening before the murder, according to court records.

The couple’s children are in the custody of the state.

The Worcester District Attorney’s office said they believe Pennington left his home at 9 in the morning of the murder. They issued an initial photo and a call for help in locating him and his white 2013 BMW SUV that day. By Monday night, a bow hunter had located the vehicle in a wooded area off Kelton Street in Gardner near Camp Collier, a Boy Scout camp.

The search for Aaron Pennington is ongoing. He is considered armed and dangerous.

Pennington is a 6-foot-2 white male with blonde hair, blue eyes and weighs about 175 pounds.

Anyone who sees Pennington is encouraged to contact the Gardner Police Department at 978-632-5600 or the Massachusetts State Police at 508-829-8326.

This is a developing story.

An image of Aaron Pennington, the Gardner man accused of killing his wife on Sunday, released Thursday by authorities searching for him. (Courtesy / Worcester DA)