A resident of a posh home in New York City (NYC) fought with her at-home health care worker and stabbed her. The 66-year-old Barbara Salberg stabbed her unidentified 54-year-old nurse after they argued over her oxygen mask. Salberg is residing in a ritzy Upper East Side co-op building known as an expensive apartment complex. The police arrived at the Manhattan apartment building around 12:39 p.m. The NYC apartment complex is popular for its skyrocketing prices.