Do you think Gaddafi Leave power like Hosni Mubarak ?
* Reports of unrest in west of Libya
* Benghazi man says security forces withdraw from streets
* Internet service cut (Recasts, edits, adds report of unrest in Tripoli, Nalut)
TRIPOLI, Feb 20 (Reuters) - Libyan Muslim leaders told security forces to stop killing civilians, responding to a spiralling death toll from unrest which threatens veteran leader Muammar Gaddafi's authority.