I Am a Killer Season 2 Episode 1

Why did 32-year-old Lindsay Haugen strangle and kill her 25-year-old lover Robert Mast in a Wal-Mart parking lot in Billings, Montana, on the 15th of September 2015? Revenge? Financial gain? Vicious compulsion? Mercy? Curiosity…? Well, it all depends on who you ask.