John MacKenzie, a convicted Long Island cop killer, sent his daughter a dark final message <br /> <br />Click here to read more: http://www.nydailynews.com/news/crime/killer-home-suicide-note-death-daughter-article-1.2749322 <br /> <br />Subscribe to our channel: https://www.youtube.com/user/nydailynews <br />Follow us on Twitter: http://www.twitter.com/nydnvideo <br />Friend us on Facebook: https://www.facebook.com/thenewyorkdailynews <br />Follow us on Tumblr: http://nydailynews.tumblr.com/
