"A jury has found a senior with dementia guilty of second-degree murder for using his walking cane to beat to death a 72-year-old woman, but acquitted him of attempting to murder a 91-year-old woman. The
jury deliberated for 10 hours over what responsibility Peter Brooks,
76, had for the attacks at the Wexford long-term care home in March
2013."
https://www.thestar.com/news/crime/2016/12/01/senior-with-dementia-guilty-in-death-of-nursing-home-resident.html