A pair of armed robbers who stole a teenager’s property and then pointed a gun at the Good Samaritan who tried to foil the caper remain at large, police said. The NYPD released a photo on April 3 of the suspects wanted for the incident that occurred at 8:50 pm on March 15 in front of an apartment building on Parkside Avenue off Bedford Avenue in the Prospect Lefferts Gardens neighborhood. According to law enforcement sources, the two crooks approached the 16-year-old …