COLLINGDALE, Pennsylvannia -- A graduation ceremony for preschool children aged four and five was marred by violence Friday night.
The incident happened around 7 p.m.
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Witnesses say a father and a stepfather of one of the children got into an argument, and one of them stabbed the other.
The victim was rushed to the hospital. His condition is not known at this time.
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The suspect remains at large.