Authorities say the first incident happened on April 16 while the student was walking along Prospect Avenue around noon.
Despite his fear, Sammy said he remembered what his dad had taught him: "If you're getting followed, don't trust them. Just act casual and go by any adult."
The boy was walking home after school when a woman started following him on High Street.
Police say the YouTubers pretended to be a 15-year-old boy and made plans to meet up with an adult male at the hotel for sex.
Police say the YouTubers had communicated with 57-year-old Roger Tomes of Philadelphia online and through text messages.
Investigators say the suspect had been texting with an undercover agent for the past month.