Cool - thanks for the link.
I suspect that the French parachuting federation issues incident reports, analysis, and corrective measures bulletins just like the USPA does. We'll find out the whole story when that happens; if it's like here, give it 90 days or so.
From the report, it sounds like Cédric performed a maneuver called "hook turn" -- it's a high speed turn in your final approach, 100' or less from the ground, considered deadly and stupid by USPA, the French Federation of Parachutism, and pretty much anyone who's been jumping for a while.
The rate of descent increased as a parachute (square, ram air canopy) banks. The sharper the turn, the faster the descent. The hook turn swings the jumper fast, like a pendulum, and an experienced jumper will guesstimate ending the swing at about the same time as his or her feet would touch the ground. The margin of error for a hook turn, by an experienced jumper riding a small canopy (the more experience the smaller the canopy), is between 5' and 10'.
Start the turn too soon, and you'll end up 3' to 10' above the ground, with a stalled parachute, falling straight down. On a good day, a few bruises or a parachute landing fall, a dirty jump suit, and teasing from your pals. On a bad day, a twisted or broken ankle, yet survivable.
Start the turn too late, and you'll slam the ground with enough force to kill you. And remember: too late is a difference of only about 5'.
Even if the turn starts fine, and the jumper is the king of experienced up jumpers, other factors may come into play. A little thermal near the ground may force the canopy up or sideways near the ground. Or a cold air pocket (e.g. flying over a small puddle, or a dark patch on the ground) may drop the canopy a few feet faster.
Most if not all drop zones since at least 1994 ban people caught doing hook turns because of the danger they present to the jumpers doing them and others around them. Every once in a while some hot shot with a few thousand jumps thinks he's above physics and chance, and does a bandit turn if nobody is watching.
Maybe Cédric ran out of air on final and thought that hooking the turn would help him land into the wind. Maybe he was just hot dogging. Regardless, if he was an up jumper and he did a hook turn, he should've known better and performed a different maneuver. Sad to loose him, but not feeling sorry about the accident itself. Stuff like this is what gives a bad reputation to skydiving in the eyes of people with little or no knowledge of the sport.