Inside the chaotic first hours of the Brown University shooting that left 2 dead

Information came pouring in second by second after a shooter first opened fire at Brown University, starting in chaos but trickling to a stall as authorities spent hours combing the campus for a suspect, call records from that day show.

Information came pouring in second by second after a shooter first opened fire at Brown University, starting in chaos but trickling to a stall as authorities spent hours combing the campus for a suspect, call records from that day show.

Two students were killed and nine others were injured in the shooting Dec. 13. Investigators later identified the gunman as Claudio Manuel Neves Valente, whose body was found in a storage locker in New Hampshire days later in what officials believe was a suicide after a professor who worked for the Massachusetts Institute of Technology was killed.

Dispatch logs from the Providence police and fire departments obtained by NBC News show a flurry of reports beginning at 4:06 p.m. and continuing late into the evening as Brown's campus remained on lockdown for hours.

Law enforcement officers stand on a pathway as students and first responders gather outside a building after the shooting. Charles Krupa / APAt 4:06:45 p.m. a dispatcher reported a call that was classified as a "shooting" within seconds, according to the logs.

At 4:06:59, the same dispatcher reported a person had been shot. Over the next 30 seconds, the incident location was updated multiple times, according to the logs. At the exact same time, another dispatcher was getting a call of shots fired at Barus and Holley, the engineering building where students were studying for finals.