An FIR was registered on Saturday against Shaan Taseer for alleged ‘hate speech’
Sunni Tehreek leader says group is not calling for Taseer's murder, only his prosecution and eventual execution
Shaan claims FIR prompted by video Christmas message he posted online
Without naming him, police registered FIR against Shaan after he allegedly called for release of Aasia Bibi, others
Things became ugly when Tahir took offense at Taseer's comment and accused him of not paying his workers