Family members told CBS 11 that the 350-pound man, who'd been asleep on the couch when police came in, couldn't drop to the ground on his stomach as officers commanded because he suffered from asthma.

“They physically pulled him off the couch because, like I said, he was asleep. They pulled him off the couch and they tried to put him on his stomach. He can’t breathe on his stomach. He don’t even lie on the bed on his stomach,” said Donna Randle, the mother of victim Jarmaine Darden, 34.

According to what witnesses told CBS 11, Darden stopped breathing and died after police tased him the second time. An investigation into the incident is underway.

Tasers are supposed to save lives by allowing police to de-escalate dangerous situations without using their guns. But critics say they are over-used and can prove deadly, most often by causing cardiac arrhythmia and cardiac arrest, including in otherwise healthy individuals. Hundreds of incidents of death or injury have been reported, leading to multiple lawsuits against police departments and Taser International, a manufacturer of the weapon.