John L Decosta age: 53 Known as: John Costa Related to:James Templin, 68 Alicia Decosta Has lived in:Summerville, SC North Chelmsford, MA Stoneham, MA Billerica, MA John R Decosta age: 63 Known as: John De Related to:Rachel Coste, 43 Has lived in:Bedford, MA South Yarmouth, MA Hudson, NH Billerica, MA John P Decosta age: 73 Has lived in:Derry, NH Manchester, NH Woburn, MA Nashua, NH John L Decosta age: 61 Known as: Decosta John Related to:John Walsh, 60 John O'Brien, 81 Has lived in:Billerica, MA North Chelmsford, MA Stoneham, MA Malden, MA