BARRIE, ONT. York Regional Police arrested a Newmarket man in connection with a series of arsons spanning several weeks in April. Police say three tractor-trailers were intentionally set on fire at a commercial facility at Leslie Street North and Davis Drive on April 10. The same night, the driver s seat of a vehicle in an auto shop parking lot on Pony Drive was set ablaze. The next day, officers say a garden centre glass door on Journey s End Circle was smashed by someone trying to get inside. One week later, a cherry-picker truck was set on fire behind a Leslie and Elgin street building. Just over 24 hours later, a vehicle at the same Pony Drive auto shop went up in flames and spread to two other vehicles.