The suspect, identified by police as 41-year-old Antwann Demetris Brown, has been taken into custody.
The violence seemed to be random and the only known motives appeared to be "robbery, hate, homicide," police said.
Police in Camden have charged Amanda Ramirez, 27, with manslaughter following the death of her twin, Anna Ramirez.
The actress is filming a remake to "The Witches" at a Warner Bros. studio in the U.K.
“To survive those deployments in Iraq and to die like this is just devastating,” Ronald Sanchez's former wife said.
The victim said he and his friends had been chased with fake chainsaws and other prop weapons before being handed the blade.
"She's just yelling my name, 'Tifah, Tifah, Tifah,' and I said, 'I got you baby, I got you,'" recounted Nia Wilson's sister.
Seven other victims remain hospitalized, many with "serious or critical injuries."
Timmy Kinner, 30, is in custody after allegedly carrying out the attack in Boise, Idaho. The victims included refugees.
Counter terror prosecutors have stepped in to investigate.
ISIS Claims the Minnesota Stabbing Spree but those behind the New York City and New Jersey bombs still remain in Shadows
The New York city explosion this week--injuring at least twenty-nine--and discovery of a second device found blocks away, rocked the city as it set off alarms and questions about whether or not New York had suffered another terrorist attack, and if so, who is behind it.
The attacker reportedly filmed part of the assault live on Facebook.
Seven people were reportedly taken to area hospitals.