Police say Gallo had nearly triple the legal blood-alcohol level when his minivan hit the car Adenhart was riding in on April 9. The grand jury indicted Gallo on three counts of murder and three other felony counts. If convicted on all counts, Gallo could be sentenced to 54 years to life in prison.
Hours before to the deadly crash, Adenhart, 22, made his season debut by pitching six scoreless innings. Also killed in the smashup were Courtney Stewart, 20, and Henry Pearson, 25. Stewart was a resident of Diamond Bar and a student at California State University-Fullerton. Pearson was a law student. Investigators said Stewart was the driver of the Mitsubishi Eclipse that was struck.
Manhattan Beach resident, Jon Wilhite, 24, was critically injured in the accident. He is currently said to be in stable condition.
City News Service and the Associated Press contributed to this report.