Steve Cooper from Boston's 7 News, Fox News' Sharman Sacchetti and WCVB's Sean Kelly have tweeted:
He turned back to see his family and smiled a bit
Tsarnaev just turned his head to smirk at family.
More top news
Teachers at a school in Northamptonshire made a unique farewell gift for their Year 11 leavers.
The advertising watchdog has ruled the "beach body ready" campaign was not offensive or socially irresponsible.
Britain is set for the hottest day of the year today, with temperatures forecast to hit up to 34C (93F).