New records say the murder suspect lived under another name in Arizona, while a Colorado judge pushed his trial back for more discovery review.
The June 16 operation involved local deputies, Homeland Security Investigations and ICE, with additional Lyon County charges still pending.
Phoenix police say the cause of the south Phoenix wreck remains under investigation, and alcohol or drugs were not believed to be factors.
The 20-year-old athlete died at the scene after the vehicle went down an embankment in the Cajon Pass. Two other passengers were critically hurt.
Authorities say the deadly wreck involved several vehicles on a stretch of U.S. 93 north of Wells.