WORCESTER, Mass. (AP) — Testimony in the trial of a Massachusetts man charged with fatally beating and suffocating his 83-year-old father is scheduled to get underway.Glenn Armstrong, who once served prison time for threatening to kill then-President Bill Clinton, is charged with murder in the January 2017 death of Walter Armstrong, who was found on the floor of his Blackstone home with a trash bag over his head.Prosecutors say the younger man also stole his father's [...]