Mixing klonopin and methadone

There have been several deaths recently in our area, all young men in their 20's, from a combination of benzos and methadone.  The most recent one involved klonopin, and at least one other was from xanax and methadone.  I don't know what the dosages were.  There was an old thread about this, but I wanted to start another one to call attention to the dangers of this combination.