Let the hive mind of Engadget get that for you.
"We need a digital camera that can be switched on and fire off that first shot fast. It's not a commonly tracked statistic on any review site, and nobody seems to have this information for every camera. We were hoping other readers could inform us as to what small digital cameras can fire off their first pics in under a second (ideally under half a second). It needs to be small, but mostly, just really quick in operation. Thanks!"
Even if the DJs were innocently ignorant in running the contest, a nurse called up and warned them of the danger.
At that point, any reasonable person would have spent 1 minute Googling to see if it was plausible that someone could die from excessive water intake. Had they done so, they would have discovered plenty of authoritative web pages and news stories explaining that the danger was real. The fact that they deliberately kept the contest going and ignored the warning is was makes their behavior reckless endangerment, to the point where it seems to me it should be prosecutable under California law as second degree murder.