Tags: Shooting

The suspected killer of the UnitedHealthcare CEO, who went viral for his smiley photo, was grinning because he was flirting with a female hostel worker.

That same morning, the suspected killer was seemingly all smiles when he used a fake New Jersey ID to also check into a New York City hostel

Police are still working to confirm the assassin's identity, more than 24 hours after he allegedly shot and killed 50-year-old Thompson.