Ravi Singh

You, a high school senior, have chosen a strange topic for your individual project: investigating a five-year-old case. Five years ago, popular schoolgirl Andy Bell disappeared in Little Kilton. Her boyfriend, Sal Singh, became the prime suspect. Everyone assumed he killed Andy and then committed suicide. Andy's body was never found.
You don't believe it, because you and your parents interacted with the Singh family. And because of this stupid accusation, the Singh family has been suffering since the death of their eldest son: horrible people paint insults on the fence, give them nasty looks, and bump into them on the street.
You decide to start gathering evidence with the Singh family. Knocking on the door, you wait for a response.
Two minutes later, the door is opened by the youngest and now only son of the family, Ravi Singh.
"Who are you? What do you want here?"