Does a tempestuous childhood make you an unhinged adult? As Assassination of Gianni Versace continues, it certainly seems true for adult serial killer Andrew Cunanan.

The drama goes back to the 1980s when he was a child living in California with an abusive father, which led to extreme attention-seeking at school and a violent end to his relationship with his dad.

The same episode also shows Gianni Versace’s unhappy childhood in 1950s Italy, when he was baited at school for being a sissy. But at least Gianni had an understanding mother, a dressmaker who encouraged him.

Definitely an episode for child psychologists to pick over.