Update: A manslaughter warrant has been issued for the unnamed female officer who killed Botham Jean in his apartment after she mistook his apartment for her own.
It's unclear, however, how the officer managed to confuse the two apartments and why she apparently fired her weapon at the man.
The officer called 911 and Jean was rushed to an area hospital where he later died.
The newspaper said the dead man had been an employee of PricewaterhouseCoopers and lived in a gated community.More news: Nadal retires, Del Potro in US Open final
When the circumstances "led us to another direction", she said the department invited the Texas Rangers to take over and conduct and independent investigation.
"Super scary because the police are supposed to protect you and then they come home and, you know, you're just hanging out in your own house and then they come home thinking they're home or whatever", Richard Healy told KDFW.
Investigators are still trying to piece together what happened, but say it appears that after working a full shift, the officer went home to her apartment complex, but went into the wrong unit.
Dallas County medical examiner's office identified him as 26-year-old Botham Jean.More news: Trump tells supporters it'll be 'your fault' if he gets impeached
On Reddit, user zachwilson23 said they met Jean while attending Harding University and described Jean as a "kind and genuine guy". "Lord, keep me sane".
According to the victim's Facebook page, Jean studied accounting at Harding University in Arkansas.
"This is a bad tragedy", the company said in a statement. "Open up!"' 20-year-old Caitlin Simpson told The Dallas Morning News. "He's a bachelor. Things are different inside and if you try your key and it doesn't work, that should make you realize you're at the wrong apartment".
"Botham Jean was a member of the PwC family in our Dallas office and we are simply heartbroken to hear of his death", the statement said. The complex is near the department's headquarters on Lamar Avenue.More news: Police officer shoots neighbour dead after mistaking his flat for her own