After being shot with a stun gun the man was detained and put in hand and leg restraints; yet continued to violently struggle with deputies and spit at them.
Deputies believed the man was suffering from a drug overdose so they gave him Naloxone.
"The San Marcos Fire Department arrived and transported the suspect to the hospital. His condition deteriorated during transport and he arrived at the hospital in medical distress," Williams said.
Unfortunately, he was pronounced dead at a local hospital emergency room at 4:30 p.m.
The name of the suspect was not released pending positive identification and notification of next of kin by the Medical Examiner's Office. The cause and manner of death will also be determined by the Medical Examiner.
Anyone with information about this incident should call the Homicide Detail at (858) 974-2321, or (858) 565-5200 after hours. To remain anonymous call (888) 580-8477.