A friend of Jaguars receiver Mike Walker was stabbed and killed at an Orlando nightclub on Friday morning, and Walker was at the scene when the stabbing occurred.

Winfred Ezell, 23, had been involved in an argument that escalated to a fight at Club Whispers.  Ezell was found on the floor at the club, and employees were unable to revive him with CPR.

Authorities have not yet located the suspect.

“Mike came to me this morning prior to meetings to tell me that he was visiting friends in Orlando,’’ coach Jack Del Rio said.  “He explained that a friend was stabbed and died.  I excused him from practice today to deal with the situation.’’

The incident comes almost three months after Jaguars offensive lineman Richard Collier was shot multiple times, allegedly by a man with whom Collier had scuffled at a night club several months earlier.

Walker, a third-round pick in 2007, is originally from Orlando, and he attended college at Central Florida.  He has 14 catches for 176 yards in six appearances this season.  Walker started the Jags’ November 16 game against the Titans.

UPDATE:  This link seems to suggest that Walker wasn’t at the scene at the moment when his friend was stabbed.