BRADENTON — A Bradenton man died early Monday after a Bradenton police officer used a Taser on him, according to police.

Derrick L. Humbert, 38, fled on foot after officers tried to make a traffic stop at 12:18 a.m. in the 700 block of 27th Street East, according to a news release prepared by Deputy Chief J.J. Lewis.

The victim’s family members later questioned when and where Humbert died after they said they were given conflicting accounts by hospital personnel and police. They said Humbert suffered from epilepsy, a brain disorder.

An autopsy was being performed to determine an exact cause of death.

Police did not respond to requests for more details late Monday.

According to the police report, Humbert fled on foot, running through several residential yards. One of the pursuing officers used his Taser, allowing officers to place him in custody, the report stated.

A Taser is an electroshock weapon that is used to slow or immobilize a suspect. Afterward, police called emergency medical service workers to take Humbert to Manatee Memorial Hospital, “for medical clearance prior to being taken to the Manatee County jail,” the news release stated.

The news release said Humbert died at the hospital while being treated.

It was subsequently determined that Humbert had an outstanding arrest warrant for possession of marijuana, according to police.

Aletha Love, one of Humbert’s sisters, said that a hospital nurse had told the family something different than the police version: Humbert was dead before he got to the hospital, and that he had died from cardiac arrest.

“Too many different stories,” Love said.

The family said Humbert suffered from epilepsy, for which he took medication. He was hit twice with the Taser, Love said.

The police department is investigating and awaiting autopsy results, according to the news release.

Although the police report did not specify what type of vehicle Humbert was using, his family members said they thought it was a bicycle.

Almost a year ago, Humbert was riding a bicycle when he was stopped by police because he did not have any lights, according to a police report about the October 2008 incident.

In that incident, another police officer wrote that he had seen Humbert drop something, which Humbert acknowledged was a marijuana cigarette. The police officer found a cigarette pack nearby with a green, leafy substance that tested presumptive positive for marijuana, the report said.

It was one entry in a lengthy police rap sheet that spanned many years.

Humbert’s nickname, according to court records, was “D-Dog.” He was the father of three minor children from one relationship. He also was the father of a 16-year-old daughter from a previous relationship, his family said.

— Duane Marsteller contributed to this report