Ella Cook
Detectives are still trying to figure out what was said by the gunman, whose firearm had a "unique characteristic" that helped cops tie him to the deadly shooting, according to NBC News.
The giveaway was a laser scope on the handgun, sources told The Post.
The shooting, which killed two students and wounded nine others, happened around 4:30 p.m. during a final exam review session at the Ivy League university for an economics class run by Rachel Friedberg, who also serves as a faculty associate of the school's Program in Judaic Studies.
Friedberg's research specifically focuses on economic impacts of immigrants in the US and Israel, with the professor previously serving four years on the faculty of the Department of Economics at the Hebrew University of Jerusalem, according to Brown.
A teaching assistant was leading the review course for the class at the time of the shooting. Police have yet to offer details on a possible motive for the shooter.
Authorities would not comment Sunday on whether the gunman was connected to the elite school in Providence, Rhode Island.
A shelter in place order was lifted on the Ivy League school campus, and all final exams have been cancelled.
One of the injured victims remains in critical condition, seven are in a stable condition and one has been discharged from the hospital, Providence Mayor Brett Smiley told reporters Sunday morning.
The person of interest was taken into custody following heavy police activity at a Coventry, RI, hotel at around 3:45 a.m. that law enforcement officials said was "connected" to Saturday's deadly shooting.
Investigators are not currently searching for anyone else in connection with the shooting, Providence Police Dept. Chief Col. Oscar Perez told the press conference.
Few other details have been given on the person taken into custody and it isn't clear if he was affiliated with the university.
A heavy police presence remains in place as of Sunday morning, with access to the university's Minden Hall and nearby apartment buildings still limited. "The people of Providence should breathe a little easier this morning," Mayor Smiley said.
The shooting happened around 4:30 p.m. during a final exam review session.
Access to the university's Minden Hall and nearby apartment buildings is still limited.
"All of a sudden, we heard gunshots and people screaming," said Joseph Oduro, the teaching assistant who hosted the review session, to the New York Times.
Oduro was saying goodbye to his students a little after 4 p.m. when the gunman burst into the lecture hall in an engineering building on campus. Oduro hid with 20 others, including a wounded student, behind a desk.
He recalls hearing the gunman shout something incomprehensible.
"That's what the students and I — and the detectives — have been trying to piece together," he said.
Given the layout of the lecture hall, Oduro told the Times, students in the center section of seats were the most exposed to open fire.
"The students in the middle were impacted the most," he said. "Many of them were lying there and they were not moving. I have no idea how many."
None of the casualties have been identified.
Footage of the alleged shooter was released Saturday evening showing the suspect exiting an academic building onto Hope Street.
He was described as "a male, dressed in black," and possibly in his 30s by Tim O'Hara, Providence Police deputy chief, on Saturday night.
Comment: Many people on social media are pointing out that despite the campus being surrounded by surveillance cameras, police have not released any information as to who might be the shooter.