Tip played crucial role in finding Brown Univ. gunman

Case Progress - Within approximately 1 hour to 2 hours after obtaining a picture of a second individual, that person came forward to Providence police with information to help the case [1] - The individual's interview significantly advanced the case [2] - The individual led authorities to the car, which then led to the identification of the suspect, photographs of the suspect renting the car, and confirmation that the suspect's clothing matched that of the shooter in Providence [2] - The suspect was found dead with a satchel containing two firearms and evidence in the car that matched the scene in Providence [2]