Sebastian Hernandez pleaded no contest to fatally stabbing Christopher Olivarez at his home in Bexar County, Texas in September 2021. Homicide investigators arrived at the scene the day of the murder in 2021, they found several surveillance cameras and a Ring door camera. After reviewing some of the footage, they noticed an unknown man had appeared multiple times. Police and Crime Stoppers released some video clips to the public, hoping for tips that would help identify the unknown man. One video showed a man leaving the home and driving away in Olivarez's 2014 Lexus. The vehicle was found abandoned several days after the crime, outside of city limits. A credible tip led police to Hernandez. Detectives contacted him, and he agreed to come to the office, give a statement and provide a DNA sample. Police said the DNA sample was sent to labs and later came back as a match to forensic evidence found at the crime scene and on the murder weapon -- a knife. In 2022 detectives got an arrest warrant for Hernandez, who was an acquaintance of Olivarez, and later arrested him at his home in central San Antonio.