The FBI announced earlier this week that it has identified who was behind the 1990 art heist at Boston’s Isabella Stewart Gardner Museum, but–spoiler alert–the Feds aren’t naming names, and the statute of limitations has run out on the crime, so the creeps that swiped masterpieces by the likes of Rembrandt, Vermeer, Degas can’t be prosecuted. This may or not explain why Rick Abbath, one of the night watchmen on duty the evening of the crime 23 years ago, has decided to get chatty. In a segment (below) that aired this week on Anderson Cooper 360°, CNN’s Randi Kaye spoke with Abbath about what happened inside the museum that fateful night. Kaye takes a closer look at the famous caper in 81 Minutes: Inside the Greatest Art Heist in History, a documentary that airs on CNN tonight at 10 p.m. Eastern.