[21twelve]

I’m guessing it is probably gang related. A big arrest in September of a bunch of gang members in Long Branch:

http://www.nj.com/monmouth/index.ssf/2017/09/29_arrested_3_wanted_in_monmouth_county_bloods_gan.html

[easternsky]

Twitter says 4 dead and a 16 year old in custody

[SaxxonWoods]

They are calling it a domestic situation, no more danger to the public.