(KAIR)--The names of all three victims of what authorities say was a double murder-suicide in Jefferson County have been made public.

Dead are 64-year-old Penny Nelson, the owner of the residence, located at 3222 Detlor Road, in rural Grantville. A press release issued by Jefferson County Sheriff Jeff Herrig also identifies her as the sister of the shooting suspect, 66-year-old Harlan Gleason. He was found by authorities to have suffered what they say appear to be self inflicted gunshot wounds.

Also dead is 61-year-old James Chavez, Nelson's neighbor.

The bodies of Nelson and Chavez were discovered in the residence by Jefferson County EMS and Kaw Township First Responders shortly before 3:00 Wednesday afternoon.

Gleason's body was discovered later, following the issuance of a Code Red Alert and a search by numerous Jefferson County agencies.

Herrig says the case remains under investigation, with the Kansas Bureau of Investigation and the Jefferson County Sheriff's Office Thursday finalizing the processing of the crime scene.