Depressed Soul, Judas was greedy. The act of betrayal was prophesied but Judas was not forced by predestination to fulfill that role.
But someone was. god, the bible, whatever, sealed someone's fate from the moment creation was even thought of by determining someone would betray Jesus. It was an inescapable event. If you are saying god DIDN'T know it would be Judas, then god doesn't know the future. If god DID know, then he basically condemned Judas to killing himself.
god basically planned from the beginning that all of the death, rape, slavery, murder and abortion would occur and the specific death of specific people long before they were even born.