A man and woman who appeared in the reality show Ghost Adventures were found dead from an apparent murder-suicide in Reno, Nev. on Tuesday. The estranged couple, Mark and Debby Constantino, were found by police who were investigating the death of a third person, a man whose name has not been released and with whom Debby Constantino had been living.

According to the Associated Press, officers heard gunshots when they knocked on the door to the Constantinos’ daughter’s apartment. When confronted, a man’s voice shouted at them to leave, or “or I’ll kill her,” according to Reno Deputy Police Chief Tom Robinson. Officers found their bodies inside the apartment after using explosives to get in through the front door.

While police have not officially released the cause of death, the couple had a long history of domestic violence, and this wasn’t the first time that Mark Constantino had allegedly kidnapped his soon-to-be ex-wife (the divorce papers were not yet finalized). USA Today reports that he was arrested in August on suspicion of domestic battery by strangulation, first-degree kidnapping and first-degree domestic battery.

On their show, which aired on the Travel Channel, the pair visited “the most haunted places on Earth” in attempt to draw out spirits that lived there. In one eerie clip, the couple discusses what lies in store for them “on the other side.”

[Image via YouTube/UKTV]