TMZ reports that a 49-year-old ex-fighter named Mike Landrum is suing Mike Tyson for $115 million, claiming that he "coined" the nickname "Iron Mike" before turning pro in 1983. Since Tyson went pro in 1985...you get it.
Now I'm not a fancy big city lawyer, but it seems to me this will likely go nowhere. Landrum contends that he was "hindered from getting any major title fights or sponsorships because of the name confusion."
The TMZ article claims that Landrum went 6-4 as a pro. BoxRec.com, which has been exhaustively researched over the years, has
exactly one Mike Landrum listed in their gigantic database. That Mike Landrum, according to those records, was a junior middleweight from Inglewood, California, who went 0-2, knocked out in both fights, and he went pro (again, according to those records) in 1982, not 1983.