Rachel Morin murder: Former FBI agent reveals how capture of illegal immigrant suspect in killing went down

A former FBI special agent gave an inside look into how federal and state law enforcement apprehended the El Salvador migrant suspect in the multi-state homicide investigation of Rachel Morin.

Retired FBI Supervisory Special Agent Scott Duffey told Fox News Digital that, at the beginning of any homicide investigation, law enforcement starts with those closest to the victim.

"First and foremost, you start with loved ones, whether it be a spouse, a partner or a romantic partner," he said.