Just over a year after the release of the smash-hit Ferris Bueller's Day Off, Broderick and his co-star Jennifer Grey were spending time together in the lush seclusion of Northern Ireland, having entered a relationship in minor secrecy.
On August 5, 1987, Broderick and Grey rented a BMW 316 in the town of Enniskillen. Whilst driving the vehicle, Broderick entered the wrong lane and drove straight into an oncoming Volvo.
Inside the car was 28-year-old Anna Gallagher and her mother, Margaret Doherty, who was 63. Both of the women were immediately killed by the impact of the crash.
Broderick reported that he had no memory of the crash and could not explain why he had been driving in the wrong lane. Using his own words: "What I first remember is waking up in the hospital, with a very strange feeling going on in my leg."
Broderick was charged with causing death by dangerous driving and could have faced up to five years in a British prison. However, the star was only convicted of careless driving and ultimately fined £100, equivalent to $175.
Martin Doherty, brother and son to the victims referred to the conviction as "a travesty of justice". Doherty later recanted his ill-feelings towards Broderick, under the belief that they would meet in 2003. However, in 2012 after Broderick was featured in a Honda advertisement, Doherty claimed the meeting still had not gone ahead, saying that Broderick "wasn't the greatest choice of drivers, knowing his past".