Prosecutors revealed shocking new details behind the discovery of 38-year-old Dalewayne Turner's dismembered arm floating in Lake Mattoon last month. They allege that two individuals, Turner's wife and half-brother, tried to dispose of the body in the lake by putting it in a trash bag and using weights to drop it to the bottom. But one of Turner's arms was discovered by a boater in late June, ultimately leading to the two arrests. Here's what we know. #dalewayneturner #lakemattoon #plainfield #illinois #crime