[2] Although he lost bouts to Mike Tyson, George Foreman, Tommy Morrison, Carl Williams, Tony Tucker, Buster Douglas, Mike Weaver and Oliver McCall, he won bouts against the undefeated Donovan Ruddock, Rick "King Kong" Keller, and many more.
[1] He went on to win his next eleven fights before a 1983 first-round knockout defeat at the hands of future title contender Carl "The Truth" Williams.
[1] According to the media, Ruddock later was found to have a respiratory illness that almost ended his career, which may have contributed to breathing problems that caused his corner to stop the fight.
[1] Jaco's losing streak was finally broken on March 11, 1988, when he knocked out previously unbeaten Zambian Michael Simuwelu in the first round.
Six defeats followed, including fights against future champion Oliver McCall, an on-the-comeback trail George Foreman, and Tommy Morrison.
"[1] Jaco was born in Oregon, Ohio,[4] and grew up in Toledo where he worked at Interlaken Steel after graduating from Clay High School.
[7] In 2003, it was reported that Jaco ran a youth boxing program at the Manatee County Police Athletic League.
[8] Jaco said "I know the harm in taking medication in pills and painkillers, so I took to smoking marijuana to ease my pain and help me sleep at night.