In East Sussex, UK, Lewis Ashdown murdered YouTuber Marc Williams after pressuring him to drink excessively. He filmed the entire attack and was and sentenced to life in prison
In the US, Lori Isenberg poisoned her husband but told authorities he had drowned, to cover up her fraud. She was eventually caught and pleaded guilty to second degree murder
Bryan Whitelock killed a friend and his brother, later murdered his neighbour Wendy Buckney, and was sentenced to life with no parole.
In the US, Dr Milner's obsession led to the stalking of Tanya and Kenny. After court orders failed, he murdered Kenny and was sentenced to life in prison.
In the US, Brian Cohee Jr., 19, murdered a local man, hid body parts, and later confessed. Obsessed with violence, he was sentenced to life in prison.
US model Kelsey Turner's "Sugar Daddy" scheme turns deadly when she and boyfriend, Jon, murder Dr Burchard after financial betrayal and false accusations.
In the US, Ali Abulaban, a former airman, abused Ana, then killed her and her friend after she left him. He was convicted of two counts of first-degree murder.
In the US, Rebecca Fenton murdered her husband and staged a scene.
A US lawyer kills his partner, flees, and gets caught.
A troubled UK loner's beach stabbing leaves one woman dead