Authorities said Tuesday they may never know why a 16-year-old boy killed 13 people - including his mother and half-brother - before turning a gun on himself.
Police so far have been unable to confirm various theories about what sparked Eric Borel’s murderous rampage last weekend in this village in southern France.
Five victims remained hospitalized Tuesday, one in critical condition, after France’s worst mass murder since 1989.
There had been reports that Borel had a falling out with a girl, and that his father recently died of cancer. But police said Tuesday his father was alive.