HELP WITH A TROLL, PLEASE.

After a blessed interval, we've been getting more offensive (and quickly removed) comments from a particularly persistent, foul-mouthed and stupid troll who for years has had it in for someone named "Frank" or "Francis," presumably a reader of this blog. I'm preparing to have this piece of shit taken care of once and for all, and need some background data. Please leave in comments or email/PM me. Thanks.