Jacob Weiss, 24, is facing 300 felony counts of possessing child pornography. (Montgomery County District Attorney's Office) FORT WASHINGTON, Pa. - Authorities in Montgomery County have arrested and charged a man they say possessed and distributed child pornography.Jacob Weiss, a 24-year-old Fort Washington resident, came under investigation while a Conshohocken detective was running surveillance on a peer-to-peer file-sharing website.Authorities say on several occasions, the detective was able to connect to an account that was sharing child pornography.After obtaining information, including the IP address, for the account police traced the files back to Weiss' residence.A search warrant was obtained and served on July 9.