<unk>  is a controversial term used to explain deaths of individuals in police custody, in which the person being arrested, detained, or restrained is highly agitated and may be under the influence of stimulants.  The term is not recognized in DSM-IV, but has been listed as the cause of death by some medical examiners. There may also be a link between<unk>  deaths and the use of Tasers to subdue agitated people.
Excited delirium
Suicide crisis
Post stroke depression
Delirium tremens
Stream of consciousness 
Delirium
False awakening
Clinical depression