invented a pretext for going to the clinic, but I think it is more likely she walked with him of her own free will. Or maybe she had Alzheimer's and had no idea what was going on and just did what she was told. What is unlikely though is that she was violently forced into a parking lot and shot.
As for the OP, this is statistically a violent gun crime. It could be put into a special category suicides by gun. What would make it otherwise?