Eddie Guerrero, 20, and his sister Lisa Guerrero, 30, were found shot to death in their car on Sunny Slope Road in Albuquerque’s South Valley on August 24, 1999. Both siblings died from their injuries; the deaths have been treated as a homicide and the case is a cold case.

The Bernalillo County Sheriff’s Office has continued investigating. In 2017 billboards showing the Guerrero siblings and the message You Know Who Killed Us! were donated by Lamar Advertising to ask the public for tips. The BCSO’s Cold Case Unit has mentioned retesting existing evidence with modern techniques such as DNA extraction and ballistic testing, and detectives including Kathleen Esparsen and Sgt. John Allen have urged community help.

No arrests or identified suspects have been reported. Does anyone have information about the Guerrero siblings or recall anything from the South Valley on August 24, 1999?