Boston Terror Suspect Allegedly Planned to Behead Police

The FBI releases new details about the 26-year-old man killed in a confrontation with officers.
2:15 | 06/04/15

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Transcript for Boston Terror Suspect Allegedly Planned to Behead Police
We begin with a dramatic terror takedown outside Boston. Learning new details about the suspected lone wolf's brutal plan to kill police officers, ABC's Tom llamas starts us off in Boston with the very latest. Good morning, Tom. Reporter: That's right, Amy. Good morning. Police and federal agents confronted usaama Rahim in the parking lot because they say he was allegedly ready to attack and knew this because they had been listening to his cell phone conversations on wiretaps. They had even x-rayed a package that was sent to his home that allegedly showed that large military knife. Overnight ABC news learning 26-year-old terror suspect usaama Rahim killed in that deadly confrontation with officers initially wanted to go to New York to behead conservative activist Pamela Geller. The woman who sponsored that Muhammad cartoon drawing contest in Texas. But the FBI says on Tuesday morning, Rahim seen here in his high school yearbook changed his plan, wanting instead to behead uniformed police officers in Massachusetts. When anti-terrorism agents confronted him in the CVS parking lot Rahim allegedly lunged at them with this military style knife. Some of these allegations detailed in a criminal complaint that led to the arrest of Rahim's nephew, David Wright for conspiring in the attacks. Rahim told Wright about the knife in a cell phone conversation allegedly saying "I just got myself a nice little tool good for carving." The FBI tracking the men 24/7 and say Tuesday just two hours before he died, Rahim called Wright telling him he was about to go after the boys in blue, calling them the easiest target. We tried speaking with Rahim's family. Is there anything you want people to know about your brother? But they did not want to comment. Local Muslim leaders who knew Rahim say he was not radical. Is he somebody who could have been inspired by Isis to kill police officers? I have no information regarding that. The government officials can tell you better. Reporter: You said you know him. Were you surprised when you heard that. I was surprised. Reporter: Now, there is surveillance video of that deadly encounter in this parking lot. But local leaders who saw the video yesterday say Rahim was not on a cell phone and police did not shoot him in the back like one of his brothers claimed on social media.

This transcript has been automatically generated and may not be 100% accurate.

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