The full GTA V source code has been leaked The leak contains GTA V source code and stuff from Bully 2 and GTA VI Leaked in a discord server by a random British guy in the 360 modding community known to get sued by Rockstar multiple times
"Now i am expecting a open source version of gta to arrive soon on linux natively . Tired of playing supertuxcart."
Here is the source. Another one.
He can change if he gets the right treatment or he has a moment of reflection. It's unreasonable to expect a normal person to be the same person 3 years later and even more unreasonable to expect a mentally unstable person to be the same n years later.
Isn't that exactly what is happening?
It's not the right treatment if it doesn't work, and if it does work, it could still take ages for it to have a good enough effect.
So yes, but also no. Psychology and psychiatry are difficult because they require trial and error.