I'm very sorry for your loss.I have heard of the snapping of the brain before as my cousin committed a couple years ago and he had mentioned this to my wife.I don't think it's necessarily related to the drug as it is to the sickness that my cousin had.You never know what's happening in someones head really.Have you googled this to see if there are any support groups for people that have had family or friends commit suicide while taking
Lexapro??? I bet you would find some if you googled it.Once again I'm sorry for your loss and wish you all the best in the future......Dave