Updating a story from yesterday, Saint Clair County authorities have identified a quadriplegic man who drowned in a pond following a wheelchair accident.  The county’s deputy coroner says Gerard Frierdich of Belleville died Sunday in Centennial Park after his motorized wheelchair fell down an embankment and into the water.  The 51-year old photographer was paralyzed from the chest down in a 2007 bicycle accident.  Park visitors discovered Frierdich Sunday when they saw part of his body and wheelchair sticking out of the pond.  The deputy coroner says the wheelchair had off-road tires and Frierdich liked to ride it everywhere.  Authorities say the shore of the pond is uneven and the area is covered with roots.