Updated

TOMBSTONE, Ariz.-- It's a scene straight out of Hitchcock's "Psycho."

A Tombstone filmmaker was arrested Wednesday after authorities found a decomposed body of a woman believed to be his mother inside his home.

Tombstone Marshal Billy Cloud said his office received a call on Wednesday to do a welfare check at the home of 68-year-old Jill Fattig.

A deputy was sent to Fattig's home, but when no one answered, he went to question her son, Timothy Fattig, a filmmaker for Desert Scream Productions, a horror-film production company.

Fattig, 34, told the deputy his mother was at a hospital in Tucson. When authorities found this was not the case, Fattig admitted his mother had died a year ago.

After a search warrant was obtained, deputies discovered the skeletal remains of Jill Fattig inside the home.

Fattig was arrested on suspicion of negligent homicide and booked on a $40,000 bond at the Cochise County Jail.

If an autopsy reveals that the woman died of natural causes, however, charges will likely be downgraded to failure to report a death, a misdemeanor.

Read more on the Tombstone death at the Arizona Daily Star.

Newscore contributed to this report.