By Svea
Herbst-Bayliss and Scott Malone
(Reuters) -
Investigators believe they have identified a suspect in the Boston Marathon
bombing from security video, a law enforcement source said on Wednesday, but no
arrest had yet been made.
Police may
make an appeal to the public for more information at a news conference
scheduled for later on Wednesday, a government source said.
Earlier,
CNN reported a suspect was in custody, citing Boston and law enforcement sources, but later
retracted its report.