Layla Smith is Tabitha and Tyler's aunt and Mason's sister.
At the end of the first film, after her betrayal on her brother was revealed. Layla was about to leave New York before getting stabbed by mystery man. Layla's body was drags by her killer. Her killer was revealed but unknown identity after taking his mask off. At the start of the second film, it show the identity of Layla's killer, who he was before killing Layla.