ST. LOUIS COUNTY, Mo. – “She’s not locked up! They know who she is!”

An emotional Stephanie Joshua said police told her they know who killed her daughter, Julisa Cannon.

“How can you live?! How!?” Joshua said.

Last August, Julisa was struck by a car and killed on Meramec Station Road, near Crescent Avenue. She was 31.

“My daughter was walking home from work. It was 10 o’clock at night,” Joshua said.

Julisa’s 14-year-old was tracking her location with a smart phone app as her mother walked from her job at Pizza Hut in Twin Oaks. She was about a mile from her Valley Park apartment. She didn’t make it halfway.

“Everything just went down,” Joshua said. “The 14-year-old is wondering, ‘Why is my mom still standing here? Why is she still standing here?’”

“A very loud thump,” Robert Beattie said.

Beattie heard the hit-and-run from inside his home. He ran outside to see a phone about 45 yards from the victim.

“We’re standing on the spot where the cell phone was found. It was on and had the picture of one of her kids,” he said.

Initially, Beattie did not see Julisa.

“She got knocked all the way down to that corner,” he said.

Julisa’s mother said police told her they believe the suspect vehicle came from a bar, less than a quarter mile from the crash.

Doorbell video obtained by FOX 2 shows the possible vehicle. You can hear the sound and then see the car continue like nothing happened.

“Nobody hit the brakes on the car,” Beattie said. “They just kept on going.”

“It hurts so bad,” Joshua said as she explained that police told her they’re waiting to make an arrest for good reason.

Joshua described a meeting with a detective.

“He’s telling me, ‘Oh, it’s going to take a while,’ ‘Oh, we’re waiting for the DNA test to come back from the lab that came from the truck,’” she said.

The St. Louis County Police Department confirmed its ongoing investigation, adding that they’re holding details close to protect the integrity of their case. Detectives still would like to hear from the public.

Anyone who saw anything the night of Aug. 23, 2024, on Meramec Station Road is asked to call county police.