(wrongful death and premises liability case involving 83-year old woman who was killed by alligator while walking of an evening near man-made lagoon on plaintiff's property that plaintiff maintained; while no liability under state (GA) statutory law for an owner of property that keeps a vicious or dangerous animal on the premises (plaintiff not "owner" of alligator), owner can still have liability for injuries caused by wild animals on premises if harm caused by wild animal was foreseeable under facts as presented - plaintiff's motion for summary judgment on this issue denied; here, plaintiff had actual knowledge that alligator present in lagoon system (150 lagoons on 4,500-acre property for drainage purposes); summary judgment granted to plaintiff on nuisance claim - injury occurred on plaintiff's property).