From the Times' Tracy Weber and Charles Ornstein, still on the case after winning a Pulitzer:

Another patient hooked up to a cardiac monitor died at Martin Luther King Jr./Drew Medical Center recently after nurses failed to notice the patient's deteriorating vital signs, Los Angeles County health officials reported in a confidential memo late Monday.

The death last month is the sixth case in 21 months in which a critically ill patient at the county-owned hospital was virtually ignored while monitors designed to alert nurses to trouble went unheeded.