William C. Rocha, 18 years, died Sunday April 28, 2002, at Beth Israel-Deaconess Medical Center, Boston, from injuries received in a motorcycle accident last week.He was born in Criciuma, Brazil, son of Antonio Candido and Maria Cividini Rocha of Brockton. He has been a resident of Brockton since 1994 previously living in Somerville. He was a baker by profession at Dunkin Donuts. He enjoyed jet skiing, soccer and snow skiing.In addition to his parents he is survived by his sister Danielle Rocha of Brockton and his girl friend Glaucia Gomes of Brockton.A Funeral Service will be held Friday, May 3, 2002, at 10am in the J. Frank Conley Funeral Home, 138 Belmont Street (Rte 123) Brockton.