The man, who had run for political office in France, tweeted "how great!" about the death of an officer who offered himself up in a hostage exchange Friday.
The man reportedly entered a grocery in Trebes yelling, "Allahu Akbar, I'll kill you all." Officials say the suspect was a petty criminal from a nearby city who had been under police surveillance.
Nicolas Sarkozy, who served as president from 2008 to 2012, has been under a wide-ranging corruption investigation for years. Earlier this week he was taken into custody for questioning.
French officials have been investigating claims that former President Nicolas Sarkozy took 50 million euros from the Libyan regime to fund his successful 2007 presidential bid.
Patrick Desbois has spent the last 15 years uncovering details of Nazi massacres in Eastern Europe and Russia. Using the same methods, the priest is now uncovering ISIS crimes against Yazidis.
The decision to establish an age of consent in the country for the first time follows two cases involving men who had escaped rape charges despite intercourse with 11-year-old girls.
Two years ago, France introduced a law to force supermarkets to donate unsold food to charities and food banks. Skeptics called it unworkable at the time, but there are signs the effort is succeeding.
The artwork was quietly spirited from a Marseille museum in 2009. The trail was cold until last week, when officers happened to check the luggage compartment of a bus.
Tens of thousands of artworks were recovered after World War II, and many are still in French possession. Now, the Louvre is stepping up efforts to return them to the heirs of their rightful owners.