Former NYPD narcotics officer Darrin Porcher reacts to the viral video of the officer reviving his partner and discusses the dangers of fentanyl.

Didarul Islam, a 36-year-old NYPD officer, was off duty and working a security job when he was fatally shot by a gunman who ...

The footage, which went viral when posted online last month, shows officers smashing William McNeil Jr.'s window and hitting ...