Do you hire a high school bully?

Do you hire a high school bully?

“A guy who ruthlessly bullied me in high school has applied for a job in which I’m in charge of hiring. It’s been almost 20 years, but he made my life hell for a few years. He’s probably the most qualified applicant so far, but I’m still not over what he did. Do I hire someone else or am I being childish?”