NEWARK - Authorities say they have arrested a second suspect in the fatal shooting of a college student during a burglary at his fraternity house earlier this week.

New Jersey Institute of Technology student Joseph Micalizzi was killed early Monday at the Tau Kappa Epsilon house. The 23-year-old Freehold resident was a mechanical engineering major and had made the dean's list last fall.

Police earlier arrested 18-year-old Nafee Cotman, of Irvington on murder, burglary and weapons charges. 

The other suspect, 22-year-old Taquan Harris, of Newark, remained at large until late Friday afternoon, according to officials.

They say police arrested Harris without incident on the 100 block of Munn Avenue in Irvington. He will be held at Essex County Correctional Facility on $1 million bail.

It wasn't immediately clear if either defendant had an attorney to comment on his behalf.

The prosecutor said she does not know why this fraternity was targeted, but there appears to be no prior relationship between Micalizzi and the suspects. 

The fraternity house is across the street from the Rutgers-Newark campus, near where a Rutgers student was shot and killed in a double shooting last month.

Mourners set up a memorial for Micalizzi outside the frat house, and hundreds of NJIT students gathered for a vigil in his honor earlier in the week.

NJIT's president sought to reassure the grieving campus that students were safe.

"I am here 25 years, and this is the first murder we have had to deal with on campus," he said. "Our campus is safe. We have a 60-person security squad."