A former New Orleans police officer fatally shot an unknown man outside his mother’s home in the Carrollton neighborhood Thursday morning for reasons that remained murky hours later, according to police.

Bradley Parvez, 31, was booked with a count of second-degree murder following a meeting with detectives.

Parvez, who served on the force from March 20, 2005, until he resigned Feb. 7, 2006, declined to make a statement during his meeting with investigators, said Tyler Gamble, a Police Department spokesman.

Autumn Town, Parvez’s attorney, who was present during the meeting, said she had little more information about the incident than police released to the media.

But, she noted, the shooting occurred at a home, which she said can make cases more complicated.

“That raises a different concern than if this happened on the street,” she said. “We think that when more facts come out, we’ll be able to give a deeper comment.”

In a somewhat similar case, Marigny homeowner Merritt Landry was arrested on a charge of attempted second-degree murder in the shooting of teenager Marshall Coulter, whom he spotted inside his gated yard in the middle of the night in July 2013.

That charge was dropped in May, weeks after a state grand jury deadlocked after the District Attorney’s Office presented it with the evidence against Landry and 13 days after Coulter was arrested for entering a residence on Royal Street, just blocks from Landry’s home in the 700 block of Mandeville Street.

Thursday’s shooting was reported about 10 a.m. in the 1900 block of Fern Street in the Carrollton area of Uptown.

One neighbor said she didn’t know anything was out of the ordinary until she heard three or four shots in quick succession, followed a moment later by one final blast.

“It was quiet before and after,” she said.

Sgt. Nick Gernon, commander of the NOPD’s Homicide Division, said officers arrived on the scene to find the victim dead.

The victim remained unidentified Thursday night.

Parvez told police that he shot the victim because he might have been in his mother’s yard, Gernon said.

“At this point, it’s unclear what that person’s intentions were,” he said.

Asked if there were any signs that the victim tried to break into the home, Gernon said it was too early in the investigation to say. But, he said, there were no indications the victim ever got into the home.

The victim did not have a weapon, Gernon said.

It appeared that Parvez shot the man through a glass door because the door was shattered, Gernon said, adding that investigators do not believe there was a confrontation before Parvez fired.

Latisha Simmons lives on the other side of the shotgun double from where the shooting happened.

She said Parvez was visiting his mother and she did not think he lived there.

No one answered a knock on the door of the home Thursday evening.

Simmons stood outside the crime scene tape as detectives worked the scene and wondered how she would explain what happened to her 6-year-old son, who was inside but undoubtedly heard the gunfire and saw the police activity.

“It’s disturbing,” she said. “I have to explain this to him. How?”

Thursday’s arrest was Parvez’s first in Orleans Parish.

However, according to Jefferson Parish court records, he was arrested there in July 2011 on charges including aggravated battery, domestic abuse battery and aggravated assault.

According to a Jefferson Parish Sheriff’s Office report, Parvez, whose job was listed as a Tulane University police officer, pointed a shotgun at his pregnant live-in girlfriend inside their River Ridge apartment, struck her in the leg with the butt of the gun and tried to hit her in the face with a handgun.

Next, he hit the girlfriend with his fist, according to the report, and threatened to kill her and her family as she fled.

He pleaded no contest to the charges on July 16, 2012, and was sentenced to 30 days of home incarceration, according to court documents.

Meanwhile, he was booked in Slidell on Feb. 3, 2012, for violation of a protective order, according to an arrest log. Details about that arrest were not immediately available, but protective orders were issued against Parvez following the River Ridge incident.

While the Jefferson Parish Sheriff’s Office report listed his address as being in the 5200 block of Citrus Boulevard, court records also listed his home as being in the 1900 block of Fern Street — the same address where gunfire erupted Thursday.

Follow Danny Monteverde on Twitter, @DCMonteverde.