+2
Ooh!
I got one!
Johnny Lawrence in the original The Karate Kid (1984).
Rich kid, decent upbringing.
Hasn't suffered a lifetime of abuse, so he's not a sociopath.
However, Johnny is drawn toward a strong, powerful figure in John Kreese, who teaches Johnny and his friends karate.
Well, he's technically teaching them how to affectively kick peoples' heads in.
Now, from the stories of the past, Kreese is probably a psychopath as well.
Sure he's been in war/conflict, so maybe a little PTSD etc mixed in, but when we learn of his past, we learn he's always been a hardass control freak.
He's always been extreme.
Now, as for Johnny... he's got the good upbringing, top end social status, fancy cars and bikes, a popular friend circle, and a popular girl on his arm. The relationship is rocky... and Ali has kinda called it off with him.
She doesn't want to talk... but his response is "Well I wanna talk to you" and he gets physical with her... even going as far as snatching her radio and smashing it.
Then there's Daniel... who stands up to Johnny, defending Ali, and has also been charming to Ali.
Johnny's reaction is to kick seven bells of sh*t out of Daniel.
Johnny then actually goes out of his way to hurt Daniel throughout the course of the story.
When they see Daniel eating dinner with his mother, Johnny actually goes as far as stalking Daniel, waiting for the right time to attack, and pushing him down a steep hill which could have killed him... and even encouraging his friends to do the same, to target Daniel.
They've been taught no mercy by Kreese... but, Johnny's natural psychopathic tendencies latch on to such lessons. These extreme methods make sense to Johnny.
When Daniel snaps back against his tormentors with the water hose at the school dance, the group chase him, and it's Johnny that beats him to a pulp while the others simply restrain Daniel.
When Dutch holds a battered Daniel up, Johnny says "An enemy deserves no mercy"... and he's going to kick Daniel in the face, and kill him.
(I'd say Dutch is also a psychopath, possibly non-functioning because Dutch is far more unhinged and less calculating than Johnny)
The fact is, Ali broke it off with Johnny, and Johnny's response was one of anger and violence... then Daniel stepped on Johnny's territory... and Johnny's reaction was one of violence and targeted abuse.
The training received from Kreese has also cemented Johnny's violent and psychopathic tendencies.
Daniel unwittingly messed with a psychopath, who has a group of similar-minded friends and violent martial arts training from what is probably another psychopath.