Waited until the last day to email over his portion of the paper. The other guy in the group and I wrote most of the paper and only asked this 3rd guy to write a small portion. We pasted his portion of over from the email into the paper and all of the hyperlinks from wikipedia were still included. He hadn't even bothered to break the links.

The other guy in the group emailed the teacher and explained what happened and submitted the paper without the plagiarized portion. No idea what the teacher did about it.