LAKE COUNTY (CBS / AP) — Authorities say a GPS tracker revealed the vehicle of an arson suspect was at the scene of a destructive wildfire about a minute before it started.

The details are contained in a summary of state fire investigators’ probe of Damin Pashilk.

He is accused of starting more than a dozen fires since July 2015, including the Aug. 13 Clayton Fire that destroyed 189 homes in Lake County.

Pashilk pleaded not guilty Wednesday to arson charges.

The summary says surveillance footage placed Pashilk’s vehicle near the scene of two small fires on July 2, 2015. Investigators placed the GPS tracker on his car the following month.

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