DAVE GRAHAM and ANDRE PAULTRE THE funeral of assassinated Haitian president Jovenel Moise yesterday was disrupted by shots fired nearby and riot gas used on protesters, prompting a high-level U.S. delegation to abruptly leave and other dignitaries to duck into vehicles for safety. The state funeral in the northern city of Cap-Haitien was intended to foster national unity, but the disturbances reflected deep division over the June 7 atrocity, in which foreign gunmen walked apparently unchallenged into the presidential residence and shot Moise multiple times, also injuring his wife. Few answers have emerged about who planned the killing, or why.…