NEW : An opposition group reports Five deaths ; al-Assad 's says ` ` terrorists '' targeted . NEW : Syrian official says `` those who lead the aggression '' will pay the price . the conflict is near an end . Russia 's government links a rebel group to 2011 chemical attack in Russia . Syrian leader says the evidence for a U.N.-backed strike should be undeniable .
NEW : An opposition group reports Five deaths ; al-Assad 's says `` terrorists '' targeted . NEW : Syrian official says `` those who lead the aggression '' will pay the price . Russia 's government links a rebel group to 2011 chemical attack in Russia . Syrian leader says the evidence for a U.N.-backed strike should be undeniable .