Thanks for all the feedback.

I could not do a database detach because the database is setup for replication.

I ended up restoring an older version of the database and all is fine now. Still not sure what actually locked a portion of that particular log file. When the SQL Server services were shut down...I was able to rename the log file, move it, etc. so something inside SQL Server was locking it while trying to recover the database during startup.

Mike