 He managed to get his son and daughter to safety before he disappeared under and did not resurface. Meanwhile, the family of a teen who drowned after jumping off a cliff at Quarry Park and Nature Preserve in Waite Park says they want that area to be closed. Authorities say 17-year-old Emmanuel Seward Jr. of Brooklyn Center drowned after jumping from a 10-foot cliff into the water. Seward's family says this is the third drowning at Quarry Park in recent years.