Theory: Matthew Bevilaqua is Tony’s son

Just rewatched Season 2 Episode 9. Right before Tony shoots him, Matt cals Tony “Mommy”, begging him to stop. David Chase was hinting to us that Matt and Chrissy were cousins and, as we all know, killing one’s own kin is taboo in Italian America culture. That’s why Tony was enraged with Matt and shot him, even after giving him a diet Fanta.