Rowdy tree trimmer pleads no contest A Los Altos tree trimmer who allegedly waived a functioning chainsaw at a group of motorcyclists on Skyline Boulevard pleaded no contest to battery and received a 20-day jail sentence. James Chalkley, 47, of Los Altos, switched his plea once prosecutors dismissed a misdemeanor charge of exhibiting a deadly weapon. He was immediately sentenced to 20 days in the county jail followed by a suspended sentence of 18 months probation. Chalkley receives credit for 10 days already served since his June 12 arrest in the parking lot at Skyline and State Route 84. Chalkley was angered when a motorcyclist drove past him quickly, according to the District Attorneys Office. He reportedly retrieved a chain saw from his truck, turned it on and charged up to a group of motorcyclists including the man at which he was angry. Chalkley waved it within inches of the mans face before sheriffs deputies were called, according to prosecutors. Newspaper article link Local website where the guys who got "chainsawed" speak out.