BANI WALID, Libya (AP) — Thousands converged on Friday in northwestern Libya for the funeral of Seif al-Islam Gadhafi, the son and one-time heir apparent of Libya’s late leader Moammar Gadhafi, who was killed earlier this week when four masked assailants stormed into his home and fatally shot him. Mourners carried his coffin in the town of Bani Walid, 146 kilometers (91 miles) southeast of the capital, Tripoli, as well as large photographs of both Seif al-Islam, who was known mostly by his first name, and his father. The crowd also waved plain green flags, Libya's official flag from 1977 to 2011 under Gadhafi, who ruled the country for more than 40 years before being toppled in a NATO-backed popular uprising in 2011.