Friedland had a law degree from Syracuse University and was project manager at his family’s heating and air conditioning and heating company.
“We are very grateful to the Essex County Police and all of the local authorities for pursuing this so vigorously,” Jamie Schare Friedland said in a statement issued Saturday afternoon.
Investigators believe the four suspects arrived at the mall in a Chevrolet Suburban. Two left together in the Suburban, and two left in the Friedlands’ SUV, Murray said. Authorities did not disclose the relationship between the suspects. No weapon was recovered, Murray said.
U.S. Attorney Paul Fishman, who attended Saturday’s news conference with local, state and federal authorities, said a multiagency task force set up three years ago to combat “an epidemic of carjacking” in Essex County had helped lead to arrests in the case.
There were 416 carjackings last year in Essex County, a 44 percent increase from 2010.
Nearly 300 carjackings were reported through July 31 of this year, according to the county prosecutor’s office.
More than $40,000 was offered for information leading to the arrest of the killers in this case.