Forensics: The Real CSI S02E02 - Stabbed In The Park

When a 15-year-old teenager is fatally stabbed in a park in Coventry, the forensics team must identify the murderers through evidence left behind at the crime scene. However, the weapon is nowhere to be found, so they are reliant on just two items - a mobile phone found a short distance from the body and the victim's blood-soaked jacket.