SDLP councillor Malachy Quinn said the local community was “shocked and deeply saddened” by his death.
“The loss of a young man with his whole life ahead of him is a devastating tragedy, and it is impossible to understand the heartbreak being experienced by his family and friends,” he said.
“I know the local community will stand together and offer whatever support and comfort it can to Connor’s family in the days and weeks ahead.”
Sinn Féin Cllr, Eimear Carney, said the “entire community is heartbroken at the loss of such a young boy in such tragic circumstances”.
“Connor was a wonderful young lad who was deeply loved by his family and had a wide circle of friends.
“His presence touched the lives of so many in the community and his lovely smile and good nature will be greatly missed by everyone who knew him.”
In a statement, the Ógras Centre in Coalisland said that “in his short years, Connor made an impact that many people could only dream of making in a lifetime”.
“Everyone who knew him will remember the sparkle in his eye, the cheeky smile on his face and all the wee ticks that made him stand out from the crowd.
“He was truly one of a kind.”
Cookstown Boxing Club said that “all at the club are deeply saddened” following his death.
They said that Connor was a “very talented young man winning Mid Ulster and Ulster Championships and representing the club in the Irish National Championships in Dublin”.
They added that he had “always done himself justice inside and outside the ring” and that he “was a joy to coach”.