Via Haaretz:
A local French newspaper published on Thursday an in-depth testimony of a woman claiming that she had warned authorities multiple times that the suspect in the Toulouse killings, Mohamed Merah, was a danger to the public.
(...)
The mother filed a complaint with the police, which according to her caused Merah to become upset. “He came to the front of our home, threatened me and hit me. He said that I was an atheist and that I must pay like all the rest of France’s citizens,” she said.
She further stated that Merah claimed he would “wipe out all those who kill Muslims.”(source)