Deathly Videos on Instagram: "Joseph Kallinger was an American serial killer and mass murderer active in the 1970s, infamous for his violent crimes alongside his mentally ill son. He committed a string of home invasions, murders, and assaults, often blurring the lines between his delusions and reality. Kallinger’s troubled childhood, marked by abuse and psychological instability, contributed to his horrific behavior as an adult. He was eventually caught after a police raid and sentenced to life