Season 4

Dyane Connor examines Ireland's most infamous crimes, beginning with a look at Gary McCrea's murder of his estranged wife Dolores in January 2004. The couple's daughter Sharon recalls how her mother and sisters escaped from Gary after enduring years of domestic abuse, but he lured his wife back to the family home under false pretences, killed her and burned her remains in a fire in the back garden.

Dyane Connor focuses on the murder of 17-year-old Swiss student Manuela Riedo, who was murdered just two days after arriving in Galway in October 2007. Looking back at the 24 hours the led up to the crime, the presenter reveals how Manuela crossed paths with killer Gerald Barry, who was out on bail at the time.

Dyane Connor focuses on the death of Brian Mulvaney, who was murdered in a senseless attack outside a house party in an affluent Dublin suburb in March 2000, by a group of teenagers intent on a path of destruction. Looking back at the 24 hours leading up to the crime, the presenter reveals how the ringleader, Brian Willoughby, was a serial attacker, and shouted 'this is carnage boys, this is deadly' as the victim was beaten to death

Dyane Connor examines some of Ireland's most brutal and sinister killings and the perpetrators who carried them out. Reliving the last 24 hours leading up to these heinous crimes, the series looks at what inspired the killers to take such drastic action

Dyane Connor focuses on the death of Gerry McGinley, who was murdered by his wife Julie and her lover Michael Monaghan in August 2000. Looking back at the 24-hour period leading to the crime, the presenter reveals how the pair carefully plotted McGinley's demise before eventually taking his life as he lay in a drunken slumber

Dyane Connor focuses on the crimes of killer Thomas Murray, who was jailed at the age of 17 for the murder of 73-year-old Willie Mannion, before he struck again 20 years later when he ended the life of his former school teacher, 80-year-old Nancy Nolan, while out on day release

Dyane Connor focuses on Dublin businessman David Bourke's murder of his wife Jean Gilbert - an act that took place in the family home in August 2007 within view of their three children. The presenter reveals how Jean had decided to end their marriage and rekindled a relationship with a past lover

Documentary exploring 17-year-old Alan Higgins' murder at the hands of Christopher Dunne, a schoolboy who was two years his junior. Retracing events that led up to the crime, which took place in October 2002, the programme considers how a combination of drink and drugs fuelled Dunne's violent rampage that culminated in him stabbing Higgins to death. Presented by Dyane Connor. Last in the series.