Northern troll who joins groups to attack other Facebook users via fake profiles using various names. Can be found in the troll groups mentioned elsewhere in this site, in Anonymous UK, and as admin in some troll-run selling groups.
Here's Jagger trolling a selling group. All the admins are gone, so there is nothing to stop him. Facebook, as usual, isn't interested in a troll using a fake name to attack others.
Here he is advertising his group in a troll group.
And here is is again boasting about his attack on someone on Facebook.
'Dead' Graham Jagger social media profiles