On August 10, 2016, Anthony "Tony" Allen Timpa, a 32-year-old, unarmed white man, was killed in Dallas, Texas by police officer Dustin Dillard.

Officers had responded to a call by Timpa requesting aid for a mental breakdown due to the fact that he had not taken his prescription medication for schizophrenia and depression.

Timpa's death was ruled a homicide due to "the stress of being restrained and extreme physical exertion" and toxic effects of previous cocaine use.

After he fell unconscious, the officers assumed he was asleep and, rather than confirm that he was breathing or feel for a pulse, joked about waking him up for school and making him breakfast.

Timpa died within 20 minutes of police officers' arrival of "cocaine and the stress associated with physical restraint", according to his autopsy.

[9] An excessive force civil lawsuit against the officers was dismissed by U. S. District Judge David C. Godbey in July 2020 on the basis of qualified immunity.