In this footage from 1985 Richard Harrison classic Blood Debts, our hero defeats his adversary and we learn that "mark collins, age 45, gave himself up to the authorities after the incident. he is currently serving a life sentence".
Here's more from Blood Debts, a very good movie:
You can buy the VHS on Amazon, and you should, because that is the only format that does the material justice.
CORRECTION: The movie's coda was incorrectly quoted with the name "mark collins" capitalized. The original's lack of capitalization is held to central to its appeal by Blood Debt aficionados.