NEW : Family of victims says it is ` ` shocked and dismayed '' at the news . Philip Markoff was found dead in his jail cell . He was accused of killing a man and injuring two others . Authorities believed he met his victims on foot .
NEW : Family of victim says it is `` shocked and dismayed '' at the news . Philip Markoff was pronounced dead in his jail cell . Markoff was accused of killing one woman and robbing two others . Authorities believed he met his victims on Craigslist .