The family of a man questioned about a missing 30-year-old Alfred woman has hired a private investigator to look into her disappearance.

Sid Carlson, a retired Massachusetts state police trooper, said he was hired last Friday. His client’s son, who he declined to identify, had been questioned by state police four times in connection with the case, he said.

Kelly Gorham, a student at Southern Maine Community College, was last seen at her apartment on the evening of Tuesday, Aug. 7. She was reported missing
when she didn’t arrive at work at Maine Medical Center the next afternoon. Her car was found at her apartment and her four dogs were inside, police said.

Lt. Brian McDonough of the Maine State Police has not identified anyone who may be a person of interest in the case, but said late last week that they had processed several cars and conducted about 75 interviews, leading police to a “short list” of persons of interest. He said the police have done follow-up interviews with these people.

McDonough said last week that the police are sure that “a single individual” has information about Gorham’s location. McDonough and Gorham’s mother made a public plea at a press conference last week for anyone with information to contact State Police.

Last weekend, state officials conducted a massive air and foot search for Gorham, covering more than 268 miles and involving nearly 40 people and 10 teams with trained search dogs.