Jody death was not a sickness

As you might know jody died from sickness but is that really true the truth is after 5 month of his passing they found out he got Murdered by one of his family members According to people that were good friends with him said he only got along with some of his family members.apparently he found dead on couch but after them fixing to end investigation they found out he got poisoned by someone which was one of his family members . the family member was not to be found but about almost year later his family members lived there and sold his stuff