Man charged in marijuana-related car explosion

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SPOKANE — Prosecutors have charged a Spokane man in connection with a car explosion last summer that was triggered when he tried to mix marijuana with butane.

The Aug. 4 explosion injured 27-year-old Jacob W. Sayman and his 2-year-old daughter, who was a passenger in the car.

Sayman is charged with assault of a child and manufacturing a controlled substance.

Spokane Fire Department investigators contend Sayman used butane lighter fluid in an effort to extract THC from marijuana plant materials, attempting to make a substance called "butane honey oil."

Investigators contend Sayman failed to produce the marijuana derivative, became frustrated and tried to light a cigarette. The flame from the lighter ignited butane fumes, causing an explosion in the car.

Both Sayman and the child suffered burns.