Maurice P. Terry Sr. (June 29, 1946 â December 10, 2015) was an American journalist associated with investigating the Son of Sam killings.
A graduate at Iona College, he worked as an in-house editor at IBM after his reports on the MLK assassination.
He is known for writing the 1987 book , The Ultimate Evil, which posited that the Son of Sam murders involved a satanic cult of serial killers rather than only David Berkowitz.
His preserved archives, audio tapes, and his book were used as the basis for the Netflix documentary series and Billy the Artist, his most "crucial" eyewitness actually sold him comic book art..