HART — Michigan State Police troopers responded to four separate crashes in Oceana County over the weekend. Friday, Nov. 21, 2014 – 9:20 a.m., sex offender registration violation/failure to change address complaint, warrant issued, 2000 block of Scenic Dr., Benona Twp. – 7:53 p.m., car-deer crash, US-31, Hart Twp. – 11:03 p.m., possible shots fired and barking dog, 6000 block…