Addvar

Addvar is a Nord fisherman and stall vendor. During the day, he can be found near the well in Solitude or in his house.

Trivia
It is possible to receive a letter saying "I know you killed her, don't worry I'm actually glad she is dead." This happens when if the player kills Jala in Solitude. After killing her, a journal entry is added saying "Report success to Addvar", which possibly hints at an unfinished or glitched quest.

The Dragonborn may also revieve a letter from Addvar asking for "assistance" after assaulting Taarie, who is a merchant in Radiant Raiment in Solitude.