Ross Anthony, 25, was tased during an incident with police but a statement from police said the cause of death was still pending.
Anthony was reportedly acting erratically in a neighborhood in Pleasant Grove. Dallas-Fire Rescue paramedics saw the behavior and tried to help Anthony, but the man banged his fists on the hood of an ambulance and then got into another person's car.
Police arrived and tried to talk him out of the car and Anthony opened the door slightly. Officers were then able to pull him out, according to police, but Anthony resisted.
Police Officer Paul Kessenich used his taser on Anthony, but he began to show signs of "medical distress" according to police right after he was handcuffed.
Anthony was treated on scene by paramedics, but later died at the hospital.
Kessenich has been on the force for more than 19 years, according to police.
Other responding officers at the scene are also on administrative leave, per department policy, including Sergeant Ned Charles and Officer James MacDonald.
Anthony had been arrested by various local departments in the past few years on various minor drug and theft charges.