French officials say the man who killed a French policeman and his wife in Paris filmed the attack.
Larossi Abballa, who swore allegiance to Islamic State, stabbed the policeman to death before holding his wife and three-year-old son hostage inside their home.
After police stormed the house, authorities told media the hostage situation had been "neutralised".
The suspect was killed and police then found the policeman's wife dead inside the house. The young boy was rescued safely.
French newspaper Le Parisien said the suspect was a neighbour of the victim.
It's being investigated as a terror attack.