NORTHEAST FORSYTH — The investigation continues into the death of a female boxer mix found hanging from a fallen tree in a park on Lake Lanier in northeast Forsyth, with authorities asking anyone with information to come forward. Forsyth County Sheriff’s investigators and members of the agency’s animal control unit are following leads. In addition, they are awaiting the results of a necropsy that was scheduled to be performed Monday, said Epifanio Rodriguez, a spokesman for the agency.