First, 44-year-old Craig Samson, of Newark, was fatally shot in a grocery store at the intersection of Ocean and Orient avenues just before midnight.
Then 27-year-old James Cobbs, of Jersey City, was fatally shot on Rutgers Avenue just after 12:45 a.m.
Finally, 52-year-old Jose Pazminowas was shot in the parking lot of Dunkin Donuts at Tonnelle and Manhattan avenues at around 3:30 a.m.
No arrests were immediately made.
All the murders are under investigation, although they do not appear connected.