(CNN) The pilot of a twin-engine plane that broke up in the sky and slammed into a Southern California home was carrying a fake police badge before the fatal crash, law enforcement officials said.

Antonio Pastini, 75, of Gardnerville, Nevada, was identified as the pilot on Monday. Authorities initially believed he was a former police officer but have since then learned he was not affiliated with the Chicago Police Department.

"We were contacted by the Chicago Police Department and they reported that they have no record of (Pastini) him as being a former officer," said Carrie Braun, a spokeswoman with the Orange County Sheriff's Department.

A fake police badge and other documents were found after the crash, Braun added.

The aircraft fell apart in the air and the wreckage "ignited a massive inferno" at a Yorba Linda home.

Pastini was also a commercial pilot, National Transportation Safety Board officials said Monday.

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