TORONTO (AP) — Toronto police said Tuesday they found no additional human remains in the backyard of a house where they earlier discovered planters containing the remains of six men, but say they still are hunting for more victims of a suspected serial killer. Police spokesman Meaghan Gray said that investigators had finished their excavation of backyard at a home suspect Bruce McArthur had used to store items for his landscaping business. "We did not locate any additional remains," Gray said.