Some of them, maybe, but certainly not all. Having all of your questions answered in one place in a conversational tone with something that not only does not ask questions but will often validate fantasies or imagined grievances is way worse. The friction of having to research things is often enough to dissuade people. Obviously getting the exact data is difficult, but there are several suicides that likely would have been prevented without ChatGPT, so I imagine there is a similar effect on murders.