A father-to-be in New York died after an explosive prop accidentally detonated just ahead of the gender-reveal party for his child. 

Christopher Pekny, 28, died in the explosion and his brother Michael Pekny, 27, was injured in the Sullivan County village of Liberty, roughly 100 miles outside of New York City. 

"It wasn't meant to harm anyone," said Trooper Steven Nevel. "It was just an innocent prop for a gender reveal that went horribly wrong." Nevel also noted that the device was just a prototype and wasn't going to be the final product. 

Source: youtube.com