The results are in! AND YOURE CORRECT!!! THE KILLER WAS TALIN!!! Allow me to explain how it happened! She went to Monomi and "borrowed" pendant, and used it to hypnotize Ryan! She told him to kill Matthew with a knife she had. However, Matthew fought back, and gave Ryan heavy injuries. As Ryan completed his work, he woke up from his hypnotic spell! He must have been extremely confused, he ran away screaming from the body only to succumb to his own injuries 3 minutes later. And thus, Talin got away with it all, without a speck of blood on her.