I think this article pretty well tells us the motive.
JMHO
fran
Chelsea Schobert cooperates with investigators in drug case
March 11, 2014
When she got older, Jessica Schobert said, she would stay out to all hours. We didnt really know where she was. She would come home at 3 in the morning.
Her parents did all they could to help, she said, getting Chelsea Schobert into counseling and arranging for a tutor to help her academically. And as far as keeping track of where she was, Jessica Schobert said, they had a GPS on her car.
And whos helping her now, Clum asked.
No one. Shes 18. None of us really has any authority [over her], no one, as far as I know, Jessica Schobert said.
In late March last year, in the days leading up to the slayings, Chelsea Schobert suffered a concussion after allegedly being attacked by Ford, her former boyfriend.
Authorities have said that Jeff and Margaret Schobert wanted to bring a complete end to that relationship, and that it might have been a factor in their deaths.
Jessica Schobert said they died never really knowing an answer to who hurt her.
read more ............ http://www.ohio.com/news/break-news...ates-with-investigators-in-drug-case-1.472463
Their overriding concern was not for themselves, she told the court, but only for Chelsea Schoberts safety once she was released from the hospital.