Graham “Kermit” Williamson.Armed police attended the Shanghai Teahouse restaurant in Bothwell, Lanarkshire, after the terrifying gang attack on Friday night.Three days later Graham, 26, known as Kermit, was shot dead at his home in Caithness Street, Blantyre, two miles away.Now detectives have revealed that they are probing a possible link between the two violent incidents.In a video obtained by the Daily Record, a man – not the murder victim – is seen being barricaded into the Chinese