The grieving mom of a 13-year-old boy who drowned in the East River as he attended a high school soccer game Oct. 20 plans to sue the city, saying the teen’s coach — a school staffer — broke a promise to keep an eye on him. Laquana Badger Godfrey, 32, on Thursday filed a $40 million notice of claim over her son Kavion Brown Godfrey’s death with the city comptroller’s office. The notice names ...