PROVIDENCE, R.I. — Investigators in New England have identified the suspected Brown University shooter and are looking into whether there is a link to the murder of an award-winning nuclear scientist 50 miles away at the Massachusetts Institute of Technology, sources tell Fox News.
He remains at large, and authorities have obtained a warrant, according to the sources.
The manhunt may have crossed state lines into Salem, New Hampshire, according to killed two students, injuring nine more. Authorities said they recovered 9mm bullet casings from the scene.
A person of interest was seen Saturday a few minutes later on surveillance video in the neighborhood east of Brown's campus.
Then around 8:30 p.m. Monday, Massachusetts Institute of Technology professor Nuno F. Gomes Loureiro, 47, was discovered with multiple gunshot wounds in his apartment in Brookline, a short drive from campus. He was pronounced dead at a hospital the following morning.
Loureiro was a renowned nuclear physicist, director of MIT's Plasma Science and Fusion Center and a recipient of a presidential award honoring his research from the White House earlier this year.
Authorities have not described what kind of weapon was used to kill Loureiro.
The shooting left two students dead, identified as Ella Cook of Alabama and Mukhammad Aziz Umurzokov of Virginia, and nine injured. Six of the survivors remained hospitalized as of Thursday afternoon. One is in critical but stable condition, the others were stable.
Fox News' Sandy Ibrahim contributed to this report.