Advocate Abdul Razzaq Shar was killed on Tuesday in a drive-by shooting in Quetta, the capital of Balochistan province, while on his way to the provincial high court when targeted by the unknown assailants. Shar's son Siraj Ahmad registered a case on Tuesday, accusing in his FIR that his father was killed at the behest of Imran Khan, the Pakistan Tehreek-e-Insaf (PTI) party chairman.