Killer at the Crime Scene

Investigating the death of spa owner Ildiko Krajnyak, who was killed in a explosion at her beauty spa in Orange County, California. Forensic experts meticulously combed through the wreckage, uncovering remnants of a parcel bomb. As investigators race to determined whether Ildiko was the intended target, forensic experts reconstructed the bomb to unmask the killer.

The murder of Karla Godoy, who vanished after going on holiday to Peru. As detectives scrambled to uncover the truth, a shocking confession led to an international manhunt for her suspected killer. As the net tightened, they hit a major setback - UK police had no jurisdiction to arrest him. Police turned to a landmark piece of domestic abuse legislation and traveled 12 thousand miles to gather crucial forensic evidence.

Examining the death of renowned neuroscientist Autumn Klein, who was rushed to the hospital where she worked after collapsing in her kitchen. She was believed to have suffered from a stroke and died several days later. When doctors found no medical explanation for her sudden demise, her colleagues at the hospital became determined to find answers. Unusually bright red blood samples led to the shocking discovery that this was a murder.

In North London, 22-year-old Imani is fatally shot near a playground in a targeted attack. As his family mourns, police uncover a web of gang feuds, revenge, and mistaken identity.