Let's say, instead of a younger and elderly man, we'll make it two teenagers. If one bullies the other, strictly verbally/online, no physical abuse; and the victim commits suicide and makes it clearly known that the reason for committing suicide is from the abuse, is the bully at fault for their death? Does this scenario change your position on the aforementioned? In other words, does what you specifically say to a person(or how, for how long, or why you say something to a person) matter in these instances?

Let's say the young man were to admit he intended for the "threat" to cause the man to have a heart attack, in a scenario such as this; the young man is the elder's spoiled grandson. The grandson knows of his grandfathers' numerous heart conditions, and enacts the aforementioned scenario with the intention of the elder dying for the purpose of the grandson having claim on his inheritance. Would this change your position at all?