SHEBOYGAN, Wis. (WHBL) - It was 10 years ago today beginning at 7:21 in the morning that dozens of cars and trucks crashed in flames in the fog on I-43 in the Cedar Grove area.  The massive accident, which killed 10 people and injured dozens more, became the deadliest crash in Wisconsin history.  In all, 50 vehicles were involved.  Records show that most of the 10 victims were within 20 miles of their homes. Several people attended a memorial service near the accident site this morning.  (Some facts and photos courtesy of http://www.topslab.wisc.edu/resources/NHVC_presentations/John_Jones.pdf )