John P Costas age: 68 Known as: Jackie Costas Peter Costas John Postas John P Ostas Related to:Awilda Levin, 61 Has lived in:Key Largo, FL Avalon, NJ Glen Ridge, NJ New York, NY John D Costas age: 57 Related to:Lisa Coburn, 49 Steven Mailhiot, 65 Christine Mailhiot, 63 Has lived in:Andover, MA Lynnfield, MA John P Costas Deceased Related to:Jenna Szostak, 32 Has lived in:Wellesley, MA Newton Lower Falls, MA Waban, MA Newton, MA