Sad to hear about this.
Growing up in Detroit, I was a HUGE Thomas Hearns fan. Tommy's fight against Marvin is still spoken about with reverence around here, and our guy LOST. Hagler was a beast and a legend. Such an amazing fighter.
I offer to you what is arguably the greatest single round in boxing history. Two absolute maulers standing toe to toe, throwing bombs like confetti in New Years Eve. Somewhere in that frantic first sixty seconds, Tommy actually broke his right hand on Marvin's head. This fight is still considered by many in the boxing world to be the greatest fight ever fought.
At the 2:40 mark, Tommy catches Marvin pretty good and you can actually hear Hagler exclaim "Aww" after the punch. Didn't matter. Tommy cut Marvin up pretty good early on and Hagler knew that if the fight went on too long it would be stopped. So, in the third round, after being checked by the ring doctor due to the significant amount of blood steaming from his face, Hagler bullied up and knocked Tommy out cold. He was an absolute beast and Tommy couldn't stand up to the punishment. It was breathtaking.
Marvelous Marvin Hagler - LEGEND. May he rest in peace!