MSP investigates child porn case. #MasonCountyCrime SHERMAN TOWNSHIP — The Hart post of the Michigan State Police is investigating a case of child pornography reported in the 3000 block of North Reek Road Wednesday, Oct. 25, at 1:30 a.m., according to Sgt. Charles Hockanson. Other recent police activity in Mason County includes: Tuesday, Oct. 24, 2017: – 8:15 a.m., (MSP),…