Whether fruit of the poisonous tree doctrine applies to a custodial interrogation that has been tainted

QUESTION PRESENTED WHETHER FRUIT OF THE POISONOUS TREE DOCTRINE APPLIES TO A CUSTODIAL INTERROGATION THAT HAS BEEN TAINTED BY: 1). LAW ENFORCEMENT FORCING THE INTERROGATED INDIVIDUA TO REMAIN IN HIS FRONT YARD FOR MORE THAN SIX HOURS IN THE MIDDLE OF THE NIGHT WITHOUT WARM CLOTHING; 2). SUBJECTING THE INDIVIDUAL TO REPEATED INTERROGATIONS INCLUDING AN HOUR INTERVIEW IN A POLICE VEHICLE WHERE THE ACCUSED FREQUENTLY VOICED HIS DESIRE TO END HIS CONFINEMENT AND INTERROGATION; 3). LAW ENFORCEMENT REFUSED HIS REQUESTS TO GO INTO THE HOUSE TO, AMONG OTHER THINGS, RETRIEVE HIS MEDICATION; AND 4). THE ACCUSED REPEATEDLY REFUSED TO ANSWER QUESTIONS AND DID NOT CONFESS UNTIL THE PROLONGED DETENTION CULMINATED IN HIS EARLY MORNING HOUR INTERROGATION IN A POLICE INTERVIEW ROOM? i