An alleged top Al-Qaeda operative snatched in a US commando raid in Libya was involved in plots that killed hundreds of people and will be brought to justice, President Barack Obama said Tuesday. Vowing that America will continue to hunt down regional terror groups, Obama told reporters that Abu Anas al-Libi \"helped plan and execute plots that killed hundreds of people, a whole lot of Americans. We have strong evidence of that. And he will be brought to justice.\"