Newsday/Alfonso A. Castillo
William Cronin, a 48 year old Lake Grove man, was sentenced to 21 years in prison yesterday formolesting a young girl. The legal system failed when the jury found him guilty because he shouldhave been found guilty of molesting two young girls. Cronin was convicted in December of engagingin a course of sexual conduct with and sodomizing a 9 year old girl. The Riverhead jury, however,acquitted him on charges that he sexually abused the girl’s older sister, who was under 15.