William D. Patti Sr., a former police detective and polygraph operator, died Thursday in Mount St. Mary's Hospital, Lewiston, after a brief illness. He was 78.
The city native attended local schools. He served one year stateside in the U.S. Navy during World War II.
In 1953, Mr. Patti joined the Niagara Falls Police Department. He worked there 23 years, first in the Traffic Division and later as a detective. From 1973 until 1976, he administered polygraph tests for the department.
In 1976, Mr. Patti joined the Niagara County district attorney's office as an investigator and worked there until 1994.
He also worked as director of security for Tops Markets, and from 1976 to 1986 he and his son had a polygraph business that ran lie detector tests for police agencies and private businesses.
Mr. Patti was a former president of the Niagara Falls Police Club. He was a member of Niagara Frontier Country Club, Porter.
Survivors include his wife of 56 years, the former Sarah A. DeSantis; a daughter, Marilyn Feldhousen of Pittsford; a son, William D. Jr. of Lewiston; a sister, Mary Paonessa of Fort Wayne, Ind.; seven grandchildren; and a great-granddaughter.
A Mass of Christian Burial will be offered at 9:30 a.m. Monday in St. Charles Church, 5604 Lindbergh Ave., following prayers at 9 in M.J. Colucci & Son Niagara Funeral Chapel, 2730 Military Road, Town of Niagara. Entombment will be in St. Joseph's Cemetery.