According to U.S. news media reports: After pedestrians called 9/11, Brianna Kupfer's killer, Sean Smith, was arrested.
Law enforcement sources said a pedestrian found him sitting on a park bench in Pasadena and dialed 9/11 after arresting Sean Smith, the killer in the Bryanna Kupfer case, on Wednesday.
The Los Angeles Police Department announced the arrest on Twitter and said the Pasadena Police Department detained Smith, 31, near Fair oaks and Colorado Avenues at around 11:50 a.m.
Before he was expected to be transferred to detention, police placed him in the back seat of a police SUV
The Los Angeles Police Department sent a fugitive unit with a fingerprint reader to Pasadena and used the device to confirm Smith's identity.
The Los Angeles Police Department has received more than 1,000 prompts since the Jan. 13 investigation into the Jan. 13 stabbing of a UCLA graduate student, the sources said.
The store where the crime occurred
Kupfer, 24, who was working as a design consultant at Croft House, an upscale furniture store on La Brea Avenue North, allegedly walked in.
Police said she texted a friend saying she had gotten a "bad feeling" from the man - but the friend didn't see the message immediately.
About 20 minutes later, a customer entered the store and found Kupfer dead in a pool of blood on the floor.
Police said the motive for the attack was unknown. Kupfer was alone in the shop that afternoon.
Smith, captured by surveillance footage 30 minutes after the killing, calmly purchased an e-cigarette pen at 7-11.
Kupfer grew up in Pacific Palisade, a wealthy district of Los Angeles. After earning her bachelor's degree from the University of Miami, she returned to her hometown to pursue a graduate degree in interior design.
Brianna Kupfer
Her father, Todd Kupfer, says she dreams of launching her own clothing line. On the day Kupfer was murdered, she was supposed to fly to New York for the weekend to celebrate her best friend's birthday.
"She's a kind person who always strives to make herself better and make everything around her better," Kupfer said in an interview with Fox News Digital on Tuesday. "She cares about people."
The senseless killings shook entire neighborhoods and drew attention to the city's soaring crime rate.
According to law enforcement, homicides have surged over the past few years — the highest level in more than a decade.