A former resident assistant of a Grand Rapids, MI, area assisted living community faces up to four years in prison if convicted of second-degree vulnerable adult abuse and stalking of a resident there, wzzm13.com reports.

Tyler Lawrence Malone, 21, is accused of repeatedly calling and throwing shoes and water at an 86-year-old Life House Crystal Springs resident for several months in 2014. The resident, a woman, has Alzheimer’s disease.

Through several telephone calls, the woman alerted her sons that the alleged abuse was taking place, and she asked them to remove her from the community because she feared for her life, according to the media report. “In August [2014] my sister was told a lot of this stuff was true,” son Daniel Meyering reportedly told the court.

Addendum: Dec. 2, Malone was found guilty of a misdemeanor charge of stalking and was acquitted on the charge of vulnerable adult abuse. He is expected to be sentenced Jan. 13 on the stalking charge, which carries a maximum penalty of a year in jail.