SAN FRANCISCO—United States representative Jackie Speier announced on Monday, July 10, that a $110,000 reward has been offered in the slaying of Calvin Riley, a college student who was gunned down while playing Pokemon Go in 2016.

The 20-year old was a native of San Mateo who graduated from Junipero Serra High School. He studied kinesiology and played baseball for Delta College in Stockton. On August 6, 2016, Riley was playing Pokemon Go at San Francisco’s Aquatic Park. Just before 10:00 p.m., he was shot in the chest and died on scene.

According to police, the vehicles which may have been involved in the shooting were described as a dark-colored 2006-2009 Audi A3 Wagon and, as of Monday, July 10, a white 2013 four-door Hyundai Sonata.

“It’s been hell, we’re living a nightmare every day. We still feel like he’s coming home. It’s hard to realize that he’s not and we don’t know how to go on without him,” Kariann Roley, Calvin’s mother, said in a statement.

The reward has been broken down into three sectors. According to Speier, $50,000 was the initial amount offered last week to those who may be able to help officials locate the suspect, whose identity has not yet been disclosed. The United States Park police will contribute, offering $10,000 and Riley’s parents have added an additional $50,000 to bring the total to $110,000.