Isaac Whitney is a young man. His mother is a neighbour of Mary and John Watson, and she went to the newlyweds for help when Isaac went missing. He was later found in a drug den by John.[1]
References[]
- ↑ Moffat, Steven (writer) & Hurran, Nick (director). (12 January, 2014). "His Last Vow". Sherlock (2010). Series 3. Episode 3. BBC One.