By Sean McPolin A 63-year-old man who created an illegal 200-feet wide channel into a lake has been convicted of tampering and vandalism misdemeanours. Fisherman Andrew Howard now awaits sentences for federal charges after he diverted the Platte River by hand through Sleeping Bear Dunes at Lake Michigan. US Attorney Mark Totten explained: “These allegations of tampering and vandalism by a man-made diversion of water at Platte River are disturbing The Sleeping Bear Dunes National Lakeshore and the Great Lakes are national gems, and my office takes preserving our natural treasures very seriously…