believe in the rule of law, and accountability, and such an investigation would contribute to that. U.N. human rights spokesman Rupert Colville told reporters in Geneva on Friday that there were at least two cell-phone videos, one showing -LRB- Gadhafi -RRB- alive and one showing him dead. Taken together, these videos are very disturbing, he said. We believe there is a need for an investigation and more details are needed to ascertain whether he was killed in the fighting or after his capture.