Feel bad, but not guilty

A friend sold a 1975 F150 4x4 to a guy around 15 years ago. His dad had purchased the truck new... 2 years ago he gets a call from a guy asking if he wanted to sell his truck. What truck ?
Oh ... where is it ? Lol
The guy had never transfered the title and died....
I helped him restore it and surprised his dad on fathers day !