A man and his dog walking on an Aurora sidewalk were killed by a car on Thursday evening, according to Aurora police Friday morning.

A GoFundMe fundraiser sponsored by the man’s niece, Nathalie Munoz, identified the victims as Alberto “Flaco” and his dog Nova. Their last name was not provided in the fundraiser.

Officers responded to the crash, at East Wesley Drive, just west of Buckley Space Force Base, around 7:30 p.m. Thursday. The driver, identified as 73-year-old Michael Graham-Hyde, turned himself in at 2:45 a.m. Friday, according to police.

Graham-Hyde was driving fast westbound on East Wesley Drive when he lost control of the car, an SUV, and hit the victim and his dog walking down the sidewalk, according to police. He then fled the scene.

The dog died instantly and the man was taken to the hospital, where he was later pronounced dead.

Graham-Hyde turned himself in later that night and is cooperating with the investigation, according to police. Investigators do not think drugs or alcohol were involved in the crash.

He faces charges of careless driving resulting in death and leaving the scene of an accident involving injury, according to police. The Arapahoe County Coroner’s Office will confirm the identify of the victim pending notification of family and an autopsy.

On the GoFundMe page, Munoz called Alberto a “quiet, kind and selfless man,” saying he went out of his way to make sure her aunt felt loved and supported.

“He cared deeply for my aunt and her family, always helping without ever asking for anything in return,” Munoz wrote in the fundraiser. “Their bond was rare and deep, filled with laughter, long walks, and dreams of traveling the world together in retirement.”

She added that Nova, the dog, was “their baby,” and her aunt, uncle and Nova were “inseparable.”

According to the GoFundMe site, Graham-Hyde, the driver, stopped after hitting them, “got out of his car, looked at their bodies — and then sped off.” This claim has not been confirmed by officials.

“Our family is left heartbroken, desperate for justice, and struggling to make sense of this nightmare,” Munoz wrote on GoFundMe.

This is the second incident of a person walking their dog killed by a car in the metro Denver area in recent weeks.

In mid-March, 31-year-old Luke Peterson was hit and killed while walking his dog by a teenager driving in Highlands Ranch.

Peterson died on-scene and his dog died later in a veterinarian’s office, according to the Douglas County Sheriff’s Office.

After the crash, Peterson’s family launched a GoFundMe to raise funds “to cover any related expenses to this devastating incident,” the page said.

In a press release, sheriff’s office officials said Cade Kaminski, 19, will face charges of fourth-degree vehicular homicide and animal abuse, alleging he may have fallen asleep before the crash, according to prior Denver Gazette reporting.

During his interview with investigators after the crash, Kaminski emotionally said, “it’s all my fault … I took an innocent man’s life,” according to the arrest affidavit.

The affidavit said Kaminski told investigators that he had just over five hours of sleep the night before, then skied for five hours in Eldora near Boulder with friends before driving back to Highlands Ranch on Sunday.

Two passengers with Kaminski were asleep at the time of the crash, according to the affidavit.

It noted officers clocked Kaminski’s speed at 40-45 mph, before swerving and driving his Toyota 4Runner onto the curb, striking two trees, Peterson and his dog.

Along with vehicular homicide and animal abuse, Kaminski might face charges of reckless driving and weaving.

Kaminski was released on $20,000 bond, court records show. He’s next due in court April 17 for filing of charges.

Denver Gazette reporter Noah Festenstein contributed to this report.