MARIN CO., Calif. -- Marin County Fire officials say 73-year-old Petaluma resident Henry Walker has been arrested on suspicion of starting the 16-acre grass fire that is still burning in Marin County. The blaze is 60 percent contained.
Evacuations have been lifted for the area of Rancho Santa Margarita East.
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Crews say they will remain on the scene overnight with continued mop up Wednesday.
They expect full containment by late Wednesday.
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