The independent ace was a huge favourite and famous for his epic deathmatches in Game Changer Wrestling and Combat Zone Wrestling.
A number of WWE stars flocked to social media to pay tribute to the much-loved performer – real name Grant Berkland.
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His death comes just two-months after his wife Brianne Morrow died of heart failure on 4 April, according to reports.
GCW said in a statement: “With a broken heart, the GCW family mourns the loss of Grant Berkland aka Danny Havoc.
“Danny was an incredibly talented, intelligent, caring & genuine person.
“He was also an elite performer that entertained a generation of fans & inspired a generation of aspiring performers.”