Siege has lasted more than 24 hours . Comment: President Obama offers condolences to the victims ' families , Sarkozy 's office says . Police believe Merah killed seven people , including a rabbi and Jewish children .
Siege has lasted more than 24 hours . Police continue to negotiate with the suspect , who has been holed up for hours . President Obama offers condolences to the victims ' families , Sarkozy 's office says . Police believe Merah killed seven people , including a rabbi and Jewish children .