Dawn M Costa age: 50 Known as: Ryan Costa Dawn M Coasta Related to:Shanna Costa, 46 Stephen Costa Has lived in:Somerset, MA Fall River, MA Dawn M Costa age: 61 Known as: Mckayla Costa Dawn M Quintal Related to:Andrew Costa, 36 Has lived in:Westport, MA Somerset, MA Fall River, MA Johnston, RI Dawn A Costa age: 56 Known as: Dawn Acosta Related to:Joaquim Costa, 60 Joseph Costa, 72 Has lived in:Fall River, MA Dartmouth, MA