Shots rang out around 6:30 a.m. in southwest Houston near an intersection with a grocery store, Walgreens and Chuck E. Cheese.
The attacker, identified in local reports as 46-year-old attorney Nathan Desai, used a tree near his car for cover as he exchanged gunfire with several officers in a nearby neighborhood before he was killed, officials said at an afternoon press conference.
Six people were hospitalized with gunshot wounds, including one person in critical condition and another in serious condition. Both are expected to survive. Three more suffered minor injuries from shattered glass.
The suspect's name was not released by authorities despite widespread reports identifying him as the owner of a Porsche where investigators found weapons.
The gunman was wearing a Nazi uniform, KRPC-TV reported
, citing law enforcement sources.
Houston police's Dwayne Ready would only confirm that the shooter was wearing vintage military-style apparel.
Ready said that Nazi emblems were found on the shooter, along with a .45-caliber handgun, a “Tommy Gun” and roughly 2,600 rounds of ammunition. Both weapons were purchased legally at least five years ago, according to the Bureau of Alcohol, Tobacco and Firearms.
Officers searching the shooter's vehicle crowded around a cop holding a notebook emblazoned with a swastika that was found in the car, video shows. More Nazi paraphernalia was found in his apartment among military memorabilia and other guns.
Officials have not speculated on any motive for the attacks and a FBI spokesman said that there is "no nexus to terrorism."
Mayor Sylvester Turner, who is in Cuba for a trade mission, told KTRK
that the lawyer was “disgruntled" and "was either fired or had a bad relationship with this law firm."
Authorities do not believe any other suspects were involved in the rampage.
Witness Lee Williams said that he heard at least 50 gunshots over the course of 40 minutes and that the shooter would open fire at cars as they came near The Oaks condo complex where Desai lived.
His neighbor Jennifer Molleda said that the attorney, who practiced business, family and criminal law, had brought out an assault-style weapon when confronting roofers at the property several weeks ago.
Management at the condo told KHOU that Desai was not arrested after the incident because he had not pointed the rifle at the worker.