Detailed Explanation
This is the tragedy at the heart of the story. Sal Singh was Andie's boyfriend, and everyone assumed he killed her in a jealous rage before taking his own life. But Pip proves he was innocent—Sal was framed, and his "suicide" was actually murder to silence him. Sal's family has lived with the shame of their son being called a murderer for five years. Clearing his name is as important to Pip as finding Andie's real killer. The show does a beautiful job showing how false accusations destroy families even after death.