Vin is ambushed by a group of eight Allomancers, consisting of Thugs, a Coinshot, a Lurcher, a Smoker and a Mistborn. She battles and defeats them with minor assistance from. I'm a bit confused as to why Dockson's death really wasn't acknowledged at all. They mentioned it once in passing at the end of WoA, then a few times briefly in HoA, but it never really went.
Mistborn Dockson
Dockson is Kelsier's best friend and crewmate. He has known Kelsier for a long time, and worked with him to topple the Lord Ruler. He is no Allomancer, but he seems much more intelligent.