More info in this article from the Tennessean:
Police: Titans feared for Young's safety
Troubled Titans quarterback Vince Young spent time with a psychologist on Monday before Metro police began searching for him later in the evening.
Metro Police issued a bulletin for officers to be on the lookout for Young on Monday night after Coach Jeff Fisher expressed concern about his emotional well being.
According to Metro Police spokesman Don Aaron, Fisher had been alerted after a friend of Young’s contacted the coach around 7 p.m. Monday night. Young eventually made contact with Fisher, and the two met around midnight with Metro police officials at Baptist Sports Park.
The psychologist informed the team that Young was extremely depressed and there was reason to be concerned about him. “Given the totality of the situation, Coach Fisher was concerned about Young’s emotional well-being. He contacted the police department and expressed to us his concern,’’ Aaron said. “Once he came to Baptist Sports Park and was assessed, it appeared the concerns from earlier in the night were unfounded.’’
A friend of Young's said on Tuesday, however, the quarterback was with him watching football at Steve McNair's office in Nashville. "We sat around watching football and eating chicken wings. Everything was fine,'' said Raymond White...