I understand the perspective. I just think it's extremely interesting that the attacks stopped when he was offline (I searched him in the community and verified he was offline around 1:20am my time). Also, today the attacks did not begin until I logged into the US Trade Server 1. Coincidentally, he was online and in game simultaneously. I understand I lack the necessary technical prowess to give the solid proof at this time, but I am working on it. Unfortunately, I'm afraid that since he has reported another user in the past on this forum, he may very well be aware of this report and will initiate further assaults.
Here is what I have done to try and be more proactive: Uninstalled Comodo Firewall and installed ZoneAlarm. I have been looking around in my router settings for any indication of how I might use the functionality, but this was fruitless (I see it apparently has DOS protection, but I have no idea how to use it), I've also looked into ip hiding programs...but I don't think that's going to help me much now.
I spoke with an agent from my ISP last night who had me clear the dns cache and ip release, ip renew. I'm going to call them back tomorrow during business hours to consult with their professionals.