I'll give you two scenarios. You can do as much as you can to steer them in the right direction and the best scenario is the child develops into a high functional psychopath (CEO, surgeon, lawyer, etc) that does competitive majors.
The doctors were able to detect early on that your child indeed has chemical imbalance in his/her brain. Their prefrontal cortex (the major area responsible for empathy) has less grey matter in volume and thickness, much less than a normal brain. There is no cure for that.
If it was proven that reincarnation is true and experts at the field discovered that your child is really the reincarnation of a serial killer that got executed long ago and just like on the 1st example there is no cure for that.
Would you still love your child?