child abuse.Porn addict Robert McNab, who created fake identities to target people on Facebook and WhatsApp, was jailed for two years when he appeared in the dock at Greenock Sheriff Court on Friday.The twisted 34-year-old, who began downloading the animal abuse images the day he was released from prison, was also told he will be monitored in the community for 12 months after his release from prison.The paedophile, who was previously convicted of abusing a young girl and conspiring to have a