Some 4,400 allied servicemen lost their lives as the armed assault was launched.
Emmanuel Desreux sold dinghies to migrants for €4,500 - well above the market value.
The suspect, who has donned a motorcyclist helmet, stormed a cafe-tobacco shop in the southern city on Tuesday.
Protesters and police clash on the streets as motorbikes burn and tear gas is fired.
In the space of just 66 minutes, emergency services rushed to save precious items holed up inside the 850-year-old cathedral.
In the shadow of the fire-damaged cathedral, Paris' famous street artists once again line the Left Bank to capture this Gothic masterpiece.
The 850-year-old cathedral suffered extensive damage from the fire last night.
British Movietone images show how the cathedral provided a focal point for freedom fighters in World War II.
Half a billion euros has been raised already by billionaires and businesses.
Firefighters and police created a human chain to pull items from the burning cathedral.