Bob Lee was fatally stabbed on a San Francisco street in 2023. His children are speaking out about his death and the murder trial of convicted killer Nima Momeni.

CHICAGO (WLS) -- A man was sentenced for a murder that led to the deadly shooting of Tyshawn Lee. In 2015, 9-year-old Tyshawn Lee was shot and killed after being lured into a South Side alley.

DNA evidence helped link a man to the 2003 sexual assault of an Austin woman in Arizona. 19 states currently require DNA collection during all felony arrests, including Texas.