Police the target for beheading plot suspect

A knife-wielding man killed by terror investigators had planned to behead an unidentified victim, then changed his mind and said he wanted to kill police officers, the Federal Bureau of Investigation (FBI) said.

Usaama Rahim plotted for at least a week, the FBI said in a complaint against a relative who was arrested on Tuesday, hours after Rahim was shot dead. David Wright, was held on Wednesday on a charge of conspiracy with intent to obstruct a federal investigation.

An anti-terror task force of FBI agents and Boston policeconfronted Rahim on a footpath and fatally shot him when he refused to drop his knife, authorities said.