In 1984 Mark Staskal stabbed his sister several times with a knife, then grabbed another knife, re-sharpened it, and stabbed her several more times.
Although he's been in the hospital for years the family says he should stay there.
“I don't get over here quite as often but I come when I can," says Mark Staskal's father Redgie Staskal.
Marcy Staskal was 16 years-old when she was killed by her brother.
“It says Marcy a loving daughter a caring sister, a teacher to several, a mother to a few, and a friend to many," says Marcy's mother, Melly Staskal.
Her father Redgie Staskal made her tombstone the day after she died placed a heart on it because Valentines Day was the day they brought her home from the hospital, her name Marcy Jo given to her by her brother.
But on June 16th when the Staskals went to the fire side theater, life would never be the same, their daughter dead; their son stabbed her more than 20 times.
“I’m going to be honest there was a time when I was pretty angry with God for letting this happen but I've healed a lot not completely but a lot," Redgie Staskal said.
Paranoid Schizophrenia is what their son Mark Staskal was diagnosed with, now 22 years after being in the Mendota Mental Hospital, a judge has approved Mark's conditional release--but the family's fighting to keep him *there.
" I wish he could be, I would like to have him out and living a normal life and giving me grand-children, I'd love that but I don't think he's that well," Redgie Staskal said.
Now the Staskals are putting together a petition and plan on handing it the judge, in hopes the court will reconsider its decision.
The Staskals say the tragedy kept them together, and they still have memories of their daughter, like this Raggedy Ann doll, one of Marcy's favorites.
"I found her brownie locket and I put in on it and inside of here is a little picture," Melly Staskal said.
Despite what experts say the Staskals believe their now 43-year-old son is still a threat to others and himself.
“He’s never looked into my eyes, I've never seen him cry and say I'm sorry I took your daughter away from you," Melly Staskal said.
“The only bad person, the only bad thing in all of this is paranoid schizophrenia, there are no bad people just a terrible, terrible disease," Redgie Staskal said.
Another hearing is scheduled this month, to decide where Mark Staskal should go when released.