Patricide is a sub-form of parricide, which is defined as an act of killing a close relative.
[1] In many cultures and religions, patricide was considered one of the worst sins.
For example, according to Marcus Tullius Cicero, in the Roman Republic it was the only crime for which the civilian could be sentenced to death.
Some key examples of patricide from various cultures are included as follows: In the United States between 1980 and 2010 fathers were more likely than mothers to be killed by their children.
Teenage sons (16 to 19 years-old) were most often the perpetrators in parental killings.