- "This is a showdown for American freedom," Pamela Geller tells CNN
- Clergy who watched surveillance footage say Rahim was not shot in the back
- Police commissioner: Usaamah Rahim under investigation for possible threats against police
- Federal agent and Boston officer fired at man, he says
(CNN)Usaamah Rahim, who was fatally shot after waving a military knife at law enforcement officers in Boston, was originally plotting to behead Pamela Geller, an activist and conservative blogger, law enforcement sources told CNN on Wednesday.