A man who arranged to meet a 12-year-old girl for sex was filmed begging for mercy after he was caught by paedophile hunters.Praju Prasad, 24, from North Shields in Tyne and Wear, thought he had been talking to the schoolgirl on social media, but in fact he was messaging members of vigilante group, Guardians of the North.This week Prasad was handed a nine-month suspended sentence after admitting attempting to meet a girl under the of 16 after grooming.He was also handed a £140 fine and ordered to sign the sex offenders register for five years.