A couple found dead from gunshot wounds inside a Green Valley home in a possible murder-suicide Saturday have been identified.

George Phillips, 77, and his wife, Alice Phillips, 76, were found by deputies who responded to an unknown problem in the 300 block of North Cape Royal Drive, said Chief Deputy Chris Nanos of the Pima County Sheriff's Department Monday.

The residence is west of Interstate 19, and deputies responded shortly before 6 p.m. to investigate, Nanos said in a news release.

Investigators believe George Phillips shot his wife, and then shot himself, said Nanos.

Detectives found out that George Phillips may have been suffering from a terminal illness, Nanos said.