Who Is Tyler Stratton? Details Emerge on Boyfriend of Missing Nikki Alcaraz

• Update 05/31/23, 5:30 a.m. ET: Nikki Alcaraz was found safe by police in California on Tuesday afternoon.

More information has come to light about the boyfriend of missing Nikki Alcaraz, who was last seen earlier this month during a cross-country road trip.

Alcaraz, 33, was last spotted on May 6 in Moriarty, a town in New Mexico's Torrance County, travelling with her boyfriend, Steven Tyler Stratton, and her dog.

She sent her last text, to her sister Toni Alcaraz, two days later, law enforcement officials said in mid-May. The mom of two, who is also known as Nikki Cunningham, was making her way from Tennessee to California to visit relatives when she disappeared.

Early on Tuesday, Cheatham County Sheriff's Office in Tennessee confirmed there was an active arrest warrant for Stratton on an unrelated charge.

The warrant "was issued by the judge for failing to appear in court," Lt Kenneth Miller of Cheatham County Sheriff's Office told Newsweek. "I am not at liberty to release if he has a criminal history beyond that."

Stratton was travelling with Alcaraz in a black 2013 Jeep Wrangler, with a bumper sticker reading "Momma Tired," police said in a social media post earlier this month.

At the time, law enforcement said Alcaraz could be in New Mexico, Arizona or California. Moriarty Police Chief, Adan Urbina, told Newsweek on Monday that a license plate reader had captured the plate on Alcaraz's jeep in Flagstaff, Arizona, on May 8.

"Due to a history of domestic assault we believe she is in danger," police said in a flyer posted online by Cheatham County Sheriff's Office alongside Moriarty Police Department on May 12.

Stratton and Alcaraz were in contact with the police in New Mexico on May 4, according to local media reports, which add that a witness allegedly saw Stratton punch Alcaraz. Neither party pressed charges and Stratton also sustained injuries, according to WKRN.

Newsweek has reached out via email to the Torrance County Sheriff's Office, which attended the incident.

Alcaraz's sister, Toni, told WKRN that Alcaraz was "crying and upset" after the incident. "Her eye was already turning black and you could tell she was beat up pretty bad," she added.

"He beat her up pretty badly," Alcaraz's brother, Josh Alcaraz, told Fox5. "A truck driver had to pull him off of her, call the police. The police picked him up, took him a couple exits down and dropped him off. She was diagnosed with a traumatic brain injury, and a broken hand or wrist," he added.

Alcaraz may have been spotted over the weekend at a Walmart in California, according to media reports on Tuesday. Alcaraz used a kiosk to sell her cellphone, a friend told the U.S. Sun.

Alcaraz is described as approximately 5 feet 6 inches tall and weighing around 160 pounds, with long brown/black hair and brown eyes.