McAndrew, 23, in the family's Upper Merion home.
According to neighbors, the carnage is "traumatic and very shocking."
Of the accused killer, a neighbor said: "I played soccer with him growing up. I never thought that anything was possible."Cops say the trio were killed by "multiple cuts and lacerations." Detectives found knives and a samurai sword. Local reports suggest the family fought for their liveds. McAndrew Jr. was found in the drive with his shoes and pants covered in blood.
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