The NYPD offered a behind the scenes look at how and why they launched their new social media segment "Brooklyn North's Most Wanted."

Patrol Borough Brooklyn North officers shoot interviews with lead detectives, gather video and pictures of suspects and post it to their social media pages. They do it all in the goal of tracking down Brooklyn's most wanted criminals.

Three "Brooklyn's Most Wanted" videos have already aired. This week, they're rolling out their fourth -- a look back at a double homicide at 140 Moore St., which occurred one year ago.

The lead detectives are investigating the deaths of Ana Delvalle and Basil Gray, next-door neighbors who were found dead inside their fifth-floor apartments with gunshot wounds.

Investigators say because social media is used in every aspect of life, they hope it'll finally help solve the case. Their goal is to get every Brooklyn resident to watch their segment.