On the morning of January 18, 1990, the body of a 23-year-old white female, Darla Jane Ferguson, was discovered in a remote area east of Interstate 15 in Lake Elsinore, California. A jogger stumbled upon her half-nude remains, prompting an immediate investigation. Darla Ferguson, who was known to law enforcement as a sex worker, had been brutally murdered. The cause of death was determined to be strangulation—so violent that she nearly bit through her own tongue.
Investigators noted tire tracks at the scene, which were preserved and later matched to other crime scenes in the region.
Darla Ferguson's murder was not an isolated incident. Her death was one in a string of killings attributed to a serial offender operating in Riverside County during the late 1980s and early 1990s. The pattern of the crimes—targeting women involved in sex work, the method of killing, and the disposal of the bodies—led authorities to believe they were dealing with a serial killer. The case gained traction when similar forensic evidence, including tire impressions and pubic hairs, linked multiple victims.
Eventually, the investigation led to the arrest of William Lester Suff, a former county employee with a violent criminal history. Suff was later convicted of murdering at least 12 women, including 23-year-old white female Darla Ferguson. He was dubbed the 'Riverside Prostitute Killer' and was sentenced to death in 1995. His crimes spanned several years and included acts of extreme brutality, often involving strangulation, stabbing, and post-mortem mutilation. The arrest and conviction of Suff brought a measure of closure to the families of his victims, though the full extent of his crimes may never be known.
