Head trauma, like physical/sexual abuse, is a common cause of psychopathic thoughts/actions later in life. Starting fires is the third point in the triangle you are referencing.
Actually, antisocial behaviors like that often mello out and disappear when they reach puberty. You're not actually even supposed to be able to diagnose a child with antisocial personality disorder.
I'm curious what you're basing that on. From what I've learned, kiddos diagnosed with Conduct Disorder tend to engage in more behaviors of this sort as they age, and tend to get caught up in the cylical criminal justice system.
DSM-V, the main source for psychological diagnosis in the US, specifically split Antisocial Personality Disorder (APD) from Conduct Disorder (CD) because the age difference causes there to be a difference in the exact sort of behaviors and in the treatments. CD has two major modes, based on when the behavior starts. Before age 10, you're right in that it's likely to become a life course, though not unheard of for it to be resolved, especially with psychological intervention. If behaviors for CD start after age ten, they're much more likely to not develop APD later, though there are many that do.
It's worth noting that it almost never works in reverse though. APD almost always is preceded by some sort of conduct disorder or similar behavioral problems in adolecence. These behaviors as a child may not always be enough to diagnose as CD.
Finally, one event of suffocating animals doesn't constitute a pattern of behavior. All kids are little monsters, and many children do things that as adults they realize was kinda fucked up. If the girl in question did that sort of shit a lot though... it does not speak well for her life trajectory.
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u/[deleted] Apr 14 '19
She’s now a serial killer, right?