By Mubasher Bukhari LAHORE, Pakistan (Reuters) - Pakistani police killed the leader of the sectarian militant group Lashkar-e-Jhangvi, his two sons and 11 others on Wednesday during a shootout after gunmen attacked a police convoy and freed him as he was being moved, police said. Malik Ishaq was on a U.S. list of global terrorists and the group he founded has claimed responsibility for the deaths of hundreds of civilians, mostly minority Shi'ite Muslims. On Tuesday, police took Ishaq and the sons to an area near the Punjab province town of Muzaffargarh where they had seized an arms cache to identify men they had detained on suspicion of being members of Ishaq's group. http://dlvr.it/BgcBQf