tonight. as we remember dr. martin luther king and honor his legacy, we'll hear more from the cbs archives. first, a number of major news stories we're covering this monday night. many of you are still dealing with the powerful winter storm. we want to begin about the new information about the horrifying hostage situation at a texas synagogue. tonight the f.b.i. calling what happened a terror related antisemitic attack. the man who held four people captive was a british national. police detained his two teenage sons because they spoke with their father on the day of the incident. the department of homeland security sent a memo to local law enforcement warning faith-based communities will likely be the target of future violence. cbs's omar villafranca is outside the temple in collieville, texas. good evening, omar. >> reporter: good evening. sources tell cbs news the suspect was not known to u.s. intelligence officials. who in fact, they're not sure how he got from new york here to