Theresa Casano of Riverhead died Aug. 31 at the age of 52.
Born Jan. 19, 1960, in Queens to Ernest and Geraldine (Schmitt) Casano, she worked at SUNY/Stony Brook as a biotech engineer.
Ms. Casano is survived by her mother and her sisters, JoAnn Rietz of Riverhead and Angela Purificato of Calverton.
Arrangements were handled by Reginald H. Tuthill Funeral Home in Riverhead. Cremation was private.