The Daily Mail is reporting that the Paris terrorist literally said he wanted to kill police before opening fire on a police vehicle:

DAILY MAIL – ‘I want to kill police’: Terrorist’s boast before shooting dead a police officer and wounding two others in AK-47 ambush on the Champs Elysees before he is killed

He said a ‘car pulled up just after 9pm’ next to a police patrol car which was parked up on the busy avenue.

A man jumped out with a Kalashnikov and started firing indiscriminately into the police vehicle, hitting the unidentified officer who died directly in the head.

The assailant then ran off, pursued by other officers. Two of them were wounded as they killed him.

Mr Brandet said ‘all lines of investigation were being pursued’, while intelligence sources said the dead assailant was a known radical on a so-called S-file, for ‘State-security’.

This means he would have been under surveillance, because he was a known risk to the country.

They didn’t elaborate on this in the body of the post so I included the title in the quote. But they also had details you may not have seen yet so it’s a good article.