Sources:

Wikipedia – Murder of Peter Porco - Murder of Peter Porco - Wikipedia

Democrat and Chronicle – UR student, after attack on parents, hires lawyer – Greg Livadas – November 21, 2004

CBS – Christopher Porco’s bid to overturn conviction in the hands of Schenectady Prosecutor – Alex Weidner – February 28, 2025 - Christopher Porco's bid to overturn conviction in the hands of Schenectady prosecutor

48 Hours – Memories of Murder – Season 20, Episode 7

Fox News – Axe murderer set to appeal verdict with support from badly maimed mother – Taylor Penley – September 14, 2023 - Axe murderer set to appeal verdict with support from badly maimed mother | Fox News

Poughkeepsie Journal – Son charged with killing father, attacking mother – November 5, 2005

The Journal News – Son gets 50 years to life in ax attack that killed father, disfigured mother – Michael Virtanen – December 13, 2006