A New York City office building where a gunman killed four people then himself has reopened a week after the deadly shootings. On Monday, workers trickled back into 345 Park Avenue in Midtown Manhattan, a skyscraper home to high-profile tenants including the NFL and asset management firm Blackstone.

The Las Vegas police released documents and records describing the mental health breakdowns that the man who killed four people in a New York building had faced earlier.