CBSBoston.com had set up a web camera at the Boston Marathon finish line to record a time-lapse video of the racers. This clip runs from from just after noon through Monday evening. Click here for the latest on the bombings.
        Posted 
        
      
    
    
      
        and last updated
        
      
    
    
    
      Copyright 2025 Scripps Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
    
    Sign up for our Morning E-mail Newsletter to receive the latest headlines in your inbox.
 
        