DNA Technology Leads to Arrest in 14-Year-Old Florida Murder Case

Detectives in Orange County, Florida, arrested Calvin Washington for the 2012 first-degree murder of Ying Sun using advanced DNA technology.
Breakthrough in Decades-Old Investigation
The Orange County Sheriff's Office cold case unit secured an arrest warrant for Calvin Washington following a lengthy investigation into the death of Ying Sun. The case had remained unsolved for more than 14 years, leaving the circumstances surrounding Sun's death a mystery for over a decade.
Investigators utilized modern DNA technology to identify Washington as a person of interest in the homicide. This forensic advancement allowed detectives to link him to the crime scene, providing the evidence necessary to move forward with criminal charges.
Details of the Charges
Washington faces a charge of first-degree murder in connection with the 2012 incident. Law enforcement officials noted that the integration of contemporary forensic tools was essential in resolving this long-standing cold case.
The arrest marks a significant milestone for the Orange County Sheriff's Office, which has prioritized the use of evolving biological evidence techniques to revisit unsolved homicides. While specific details regarding the forensic process were not fully disclosed, the department confirmed that the biological evidence was the primary driver in securing the warrant.
Case Timeline
- 2012: The death of Ying Sun occurs in Orange County, Florida.
- 2012-2024: The homicide remains an unsolved cold case.
- Current: Detectives use DNA technology to identify Calvin Washington and secure an arrest warrant for first-degree murder.


