Weylin

Weylin is a Forsworn agent in the city of Markarth. As you come through the doors of Markarth, he withdraws a blade and stabs a Nord woman, Margret. Alternatively, you can stop him from killing her by killing Weylin first. From doing this, Margret will give you a Silver Emerald Necklase she was initially going to give her sister.

Eltrys confronts you after killing Markrath either way and hands you "Eltrys' Note". You claim it's his note however he denies it.

You can kill him and it will cost you no bounty from the Markarth guards

'Upon entering Markarth, a guard also says he knows you. You can say "I don't have time for this. Do you?" He will reply, "Go be some other guard's problem."'

4 Gold 2 Lockpicks