It hasn't, in fact it's still going on for 2012
Yes of course, you can watch Criminal Minds season 6 at CBS
The Season 6 premier is September 22nd
Yes, there is a season 6. It is out on DVD in North America.
The Boogeyman is Season 2, episode 6
There are 24 episodes
Currently 6. A 7th is likely to come.
Sept 22 9pm eastern time
September 22nd 2010 at 9/8c.
The episode of Criminal Minds where SSA Emily Prentiss fakes her death is episode 18 in season 6.
Criminal Minds - 2005 The Boogeyman 2-6 is rated/received certificates of: USA:PG
Season 2, Episode 14 "The Big Game" Season 2, Episode 15 "Revelations"
Criminal Minds - 2005 Epilogue 7-6 is rated/received certificates of: Netherlands:12