Kevin Gavin, 66, was arrested and charged with the murders of three of his elderly neighbors
The Brooklyn man is accused of killing Myrtle McKenny, 82, Jacolia James, 83, and most recently, Juanita Caballero, 78, over a five-year period
The three women were residents of the Woodson Houses in Brownsville, where Gavin also lived, police said
Gavin had volunteered to help the women with their errands, but allegedly killed them after they failed to pay him
Someone choked the life out of Juanita Caballero, 78, whose adult son found her about 5 p.m. Friday after arriving for a visit at her home in the Woodson Houses on Powell St. near Dumont Ave. in Brownsville, police said.