Mosca lived in and around Hamilton for many years, and lived in
St. Catharines, Ontario, with his wife, Helen, a real estate agent. His second wife, to whom he was married 20 years, suffered a fatal heart attack. He authored a book with Steve Milton called Tell Me To My Face, published by Lulu Canada Inc. In 2011, Mosca got into a fight with former
B.C. Lions quarterback
Joe Kapp at a CFL alumni luncheon regarding a controversial hit Mosca had made in the 1963 Grey Cup game, where Mosca ended up hitting Kapp on the head with his cane. The video of the fight went viral, receiving over 647,000 views on YouTube Mosca auctioned off the cane he used against Kapp at the following year's alumni luncheon for $7,700 (), with the money going towards the alumni association's "dire straits" fund for struggling former players. Mosca appeared in several Canadian TV commercials in the 1970s and 1980s. which took away his ability to swallow or eat solid foods. His number 68 football jersey was retired by the Hamilton Tiger-Cats football club on August 27, 2015, in a ceremony at Tim Hortons Field in Hamilton. In July 2016, Mosca was named part of a
class action lawsuit filed against WWE which alleged that wrestlers incurred traumatic brain injuries during their tenure and that the company concealed the risks of injury. The suit was litigated by attorney Konstantine Kyros, who has been involved in a number of other lawsuits against WWE. US District Judge
Vanessa Lynne Bryant dismissed the lawsuit in September 2018. ==Death==