Seif al-Islam Kadhafi, the son of Libya's late longtime ruler, was killed Tuesday by gunmen who stormed his home in western Libya's Zintan, his French lawyer Marcel Ceccaldi told AFP. "He was killed today at 1200 GMT... in Zintan in his home by a four-man commando," Ceccaldi said. Seif al-Islam, 53, had been seen by some as his father's successor, despite being targeted by a warrant from the International Criminal Court for alleged crimes against humanity. His adviser, Abdullah Othman Abdurrahim, told Libya's Al-Ahrar television channel that the four unidentified men had stormed the home before "disabling surveillance cameras, then executed him". Ceccaldi said that a close associate of Seif al-Islam had told him days ago "that there were problems with his security".