An 18-year-old man was allegedly stabbed as police shut down a large house party in Western Sydney overnight. . newsiviewlistenLoading ABC NewsNews HomeTeen charged over alleged stabbing as police shut down Sydney house partyShareShare articleTeen charged over alleged stabbing as police shut down Sydney house partyTopic:Police. A 17-year-old boy has been charged over the alleged stabbing of an 18-year-old man on Friday night.