Excited delirium: Consideration of selected medical and psychiatric issues, by Edith Samuel, Robert B Williams, and Richard B Ferrell. [LINK]
A case of untreated excited delirium and sudden death
...The police used pepper spray and Taser in attempting to restrain him. It took four officers to subdue him and almost immediately after being restrained he stopped breathing. Cardiopulmonary resuscitation was initiated and a call was made for emergency medical assistance. Attempts to resuscitate him were unsuccessful. ...[coroner found] eight Taser wounds.
A case of treated excited delirium
...By the 18th day of hospitalization it was determined that electroconvulsive therapy (ECT) should be initiated and five treatments were administered during thee days.
Case 1: Tasered*_and_died (*& pepper sprayed and restrained)
Case 2: Leisurely treatment over several weeks, electroshock therapy applied by experts in a non-lethal manner
It's really asking a great deal to propose that "excited delirium" ("untreated") is acutely lethal within a minute or so of being repeatedly tasered.
And naive and gullible to accept that the taser could not possibly be a causal factor just because the manufacturer says so. Especially when you scratch the surface of their claims and find endless discrepancies and evidence that they've been playing the system.