New Delhi, March 24 -- New Jersey teen is facing multiple charges, including first-degree and second-degree murder, after allegedly killing a Newark detective and wounding another in a shocking shooting on March 7. The incident, which involved 29 bullets, was set in motion less than an hour earlier when the teen posted a video of a ghost gun on Instagram, flashing the weapon in an apparent attempt to intimidate a rival, The New York Post has learnt.

The teen, identified as a 14-year-old from Newark, shared the Instagram live video around 5:50 p.m., displaying a firearm equipped with a conversion device that enabled it to fire multiple rounds with one pull of the trigger. Law enforcement sources revealed that the teen had a history of cri...