One of many personal messages at a makeshift memorial in downtown Santa Ana for Kim Pham.
Earlier this month, a 23-year-old Kim Pham was brutally beaten outside a nightclub in Santa Ana. She died from her injuries last Tuesday.
RELATED: Kim Pham Beating: Police release photo of 'person of interest' in fatal altercation (Update)
Trying to piece together what exactly happened has proven to be quite a challenge to authorities. Here to explain why - and update us on the case is Anh Do, reporter with the Los Angeles Times.