Did a secret obsession lead an MIT "genius" to mastermind the murder of a Yale grad student?

It was a cold night in February 2021 when lead detective David Zaweski and his colleague Steven Cunningham arrived at the crime scene.

Det. David Zaweski: The patrol officers had already been out there canvassing the area. They were knocking on doors looking for anyone that might've seen anything or heard anything.

Det. David Zaweski: The crime scene detectives were starting to locate all the, uh, shell casings.