John-Michael Costello Obituary
We are sad to announce that on December 4, 2019, at the age of 49, John-Michael Costello (Watertown, Massachusetts) passed away. Family and friends are welcome to leave their condolences on this memorial page and share them with the family.
He is survived by: his mother Mary Costello; his sister Kristine (Timothy); his nieces and nephews, Julia, Shawn and James; his sister Denise (Ralph); and his nieces and nephews, Casey and Samantha.
In lieu of flowers, please consider making a donation in John's memory to the Watertown Boys and Girls Club or the Society of St.Vincent de Paul.
