Robert A. Cappello of Dorchester formerly of Arlington January 18. Beloved son of the late Mario J. and Sadie M. (DiModica) Cappello. Brother of Lawrence T. and Richard P. Cappello of Mashpee. Relatives and friends are invited to visit in The DeVito Funeral Home 1145 Mass Avenue ARLINGTON Thursday morning at 9:30 with a funeral home service to commence at 11:00. Burial to follow Mt. Pleasant Cemetery.