In contrast with last week's superhero, today's guy doesn't have luck on his side. Quite the opposite.
Harold Higgins (a name with exactly 13 letters) was never actually a normal person. While on most days he did just fine, he found himself experiencing bad luck when it came to the number 13. This got really bad on his 13th birthday, when his girlfriend died in a freak chandelier accident. On subsequent 13th days, his brother died in a plane crash, Harold lost all his money playing the stock market, his sister got in a debilitating accident that crippled her for life, his father died, yet another one of Harold's girlfriends died, and finally he got fired from his job.
Now, personally I'm not a superstitious sort, but, given the overwhelming amount of evidence for the number 13 being unlucky here, I'd be avoiding it for life. What I wouldn't do is put on a costume with a giant 13 on it and start fighting crime. Harold Higgins disagrees.
Surprisingly, this didn't result in him dying by falling down a flight of stairs. In fact, he ends up being very lucky in his crime fighting escapades (whether this is through usual plot contrivance or genuine supernatural luck is unclear), and he even picked up a sidekick named Jinx (who was exactly 13 years old, and also experienced quite a bit of bad luck). However, like most crimebusters covered here, he didn't last long. He lived for exactly 13 issues... + 2. He had 15 issues.