The medical staff, know how to kill without assisted ѕυιcιdє. For my mother-in-law 2 nurses would overdose her with her diabetic serum shots. We kept a journal and found that she was going to the hospital (from her care center) on 3-day weekends.
We caught them the 3rd time around and by that time, mother-in-law was not the same and died within a month. We did get the hospital doctor to write in comments: Overdose and one nurse was fired.