A new Duke University study found Durham police are nearly three times more likely to make an arrest after a deadly shooting compared to a non-fatal shooting. “From the point of view of preventing future shootings, it is -- in my mind -- just as important to solve the non-fatal shootings as to solve the fatal shootings,” Cook said. Non-fatal and fatal shootings have been similar in many respects (including the characteristics of victims and patterns over time and space), but police investigations of non-fatal shootings tended to collect less evidence and have a much lower arrest and conviction rate.