Court documents show investigators believe four people were involved in the dismembering of a western Ohio woman found dead last week in her bathtub.
The records say Jessica Sacco's boyfriend, Matthew Puccio, stabbed her torso with a knife and suffocated her with a plastic bag in their Urbana home.
Puccio also is accused of cutting off Sacco's legs and one arm. Investigators say an Urbana couple and a man from Fenton, Mich., helped.
The records say the Michigan man and his wife helped transport body parts for dumping in southwest Ohio and Kentucky. Police say she was killed around March 22.
Puccio is charged with murder. The others face various other charges. All are jailed on bond.
The suspects' attorneys either haven't returned calls or say they can't immediately comment.