The Perfect Trifecta

Henry Atkinson had been estranged from his family for over twenty years. Then his wife, Carolyn, reached out to them. Henry's daughter did finally call, but it was to tell them that her husband had died sliding into second base.
As Henry investigated, the team's catcher, then the pitcher died. When local television stations took an interest, the newscaster was attacked. Then there were threats against Henry's grandchildren. Would the New York Lawyer find out who was responsible, or did he have a prayer against a diabolical killer?