Updated on January 22, 2021 at 11:57 am NBC Universal, Inc. What to Know Authorities have arrested a 66-year-old man in the killings of three elderly women who lived at the same NYCHA building in Brooklyn The killings date back to 2015 but the most recent one was Friday; the victims are all between the ages of 78 and 83 Investigators believe the suspect befriended the women by running errands for them; they are taking his case to a grand jury and looking into whether he may be linked to other homicides as well The suspect, identified as 66-year-old Kevin Gavin, lived in the same Brownsville public housing building as his three alleged victims, whom he may have befriended by running errands for them, NYPD officials said.