2 killed in Yuma County and 1 in the city of Yuma , a police officer says . Yuma is a city of more than 87,000 people , according to a 2006 U.S. Census Bureau estimate , out of nearly 200,000 people in the county . Another person was injured as a result of shooting in Yuma County . One of those injured was a Yuma attorney , the police chief says . The other , a 73-year - old man , apparently killed himself , police say .
2 killed in Yuma County and 1 in the city of Yuma , a police officer says . Another person was injured as a result of shooting in Yuma County . One of those injured was a Yuma attorney , the police chief says . The other , a 73-year - old man , apparently killed himself , police say .