Richard Angelo an American serial killer and former nurse at the Good Samaritan Hospital in West Islip, New York. In 1989, he was convicted of murdering several of his patients and sentenced to 50-years-to-life in prison.
 
Handmade Christmas card with a note inscribed on the inside hand signed, Peace and joy, Richie.
 
The prison issued envelope is signed on each side, Richard Angelo.