PHOENIX (AP) Grand Canyon basketball player Oscar Frayer died from a car accident, three days after the Antelopes played in the NCAA Tournament for the first time. He was 23.

Frayer and his sister, 28-year-old Andrea Moore, were killed with an unidentified person in a car crash in Lodi, California, on Tuesday, the school announced Thursday.

Frayer, a senior, was a four-year starter at Grand Canyon and completed his academic requirements to graduate in April. The 6-foot-6 forward averaged 6.6 points, 2.5 rebounds and 2.0 assists while helping the Lopes win the Western Conference Athletic Tournament for the first time.