Over 700 police and specialist anti-terror officers had joined the hunt to find the suspect who was a hardened criminal and known to authorities for having been radicalised to an extremist form of Islam.
While there were fears he may have fled into neighbouring Germany French police concentrated their searches on the Neudorf and Meinau areas, where Chekatt grew up.
Just before reports emerged that police had tracked down the suspect France's Interior Minister Christophe Castaner announced that the city's famed Christmas market would reopen again on Friday. Security around the market would be boosted with the number of access points reduced and shoppers subject to more checks.
"We can't give in to fear because life, the festivities, our culture, the joy, of which this Christmas market is a symbol, must win through," said Castaner.
At least a Christmas market will be a handy place to find candles.