Paris Police Officer Stabbed Near Champs-Elysées, Attacker Neutralized

Incident occurs days before Olympics, heightened security measures in place

Officer sustained serious neck injuries but is not in critical condition.
The attacker, a 27-year-old man with a history of psychiatric issues, was shot and later died.
Authorities do not suspect terrorist motives but the attack adds to pre-Olympic tensions.
The suspect is also linked to the murder of a teenager in a Paris suburb earlier the same day.
Paris is deploying 45,000 police officers and 10,000 soldiers for Olympic security.