peter van sant investigates for "48 hours." >> this is casey kasem in hollywood on0>>ortem 40"scby-dojeannie thompson, his second wife. >> we're gonna miss the bus! >> reporter: ...and the star of the hit tv show "cheers" grew up listening to him. casey also had three kids from his first marriage, kerri, mike, and julie. but they would have a strained relationship with their new stepmom. after more than 30 years of marriage, casey was diagnosed with a debilitating parkinson's-like disease. it was then, his children say, jeannie cut off their access to him. jeannie says his children began a campaign of harassment. >> we have been stalked, tracked, bullied. >> reporter: the family feud escalated when kerri says jeannie put casey's health at risk by taking him out of a rehab facility. >> jean kasem pulled my dad out at 2:30 ins be and i.v.. >> reporter: in 2014, armed with a court order to hospitalize their dad, this bismar showdown occurred between kerry and jean. >> in the order of king david i give this meat to you. >> what person in their right mind throws frozen meat at you, screami

peter van sant spoke to his wife and children. >> this is casy kasem on american casey kasem made a for as much as $100 million. when he died in 2014, his family went to war. his second wife, jeannie kasem, had been with him for 34 years. >> i loved that man so much. i would have died for him. >> his widow and children from his first marriage are suing each other for wrongful death with accusations on both sides that they hastened casey's demise. >> i believe it was a long range pre-meditated plan and he's gone. >> it's just lie after lie after lie without any evidence. >> julie, michael and carrie blame their step mom. >> jeanne killed my father. >> do you mean murder? >> what she did led to his death. >> reporter: it's been a full on family drama. from casey's wife taking him from a rehab a facility in the middle of the night to fighting a court order with hamburgers. >> in the order of king david -- >> what american their right mind throws frozen meat at you screaming bubbly cal verses. >> reporter: to collapsing during a deposition. and what may be the strangest thing, an epic inter