Alleged prostitute Alix Tichelman was sentenced to six years in prison for the death of a Google executive, CNN reported Tuesday. She pleaded guilty to involuntary manslaughter, administering a controlled substance, possession of a controlled substance, destroying or concealing evidence, and engaging and agreeing to engage in prostitution, the Santa Cruz Superior Court said.

Forrest Timothy Hayes, 51, was found dead aboard his 50-foot yacht in California's Santa Cruz harbor in November 2013. Tichelman injected him with a lethal dose of heroin and left him on the vessel to die without calling for help, authorities claimed. Originally, Tichelman had pleaded not guilty to voluntary manslaughter.

Her lawyer, Gerald Christensen, said the California call girl was thankful the court proceedings were over. "We've always said the case actually is an involuntary manslaughter (case) -- that it was an accidental overdose and a subsequent panic and a failure to call 911," he said, according to CNN. "I think she has a tremendous amount of relief that this ordeal is closing."

Alix xx Alleged prostitute Alix Tichelman was sentenced to six years in prison for the death of Google executive Forrest Hayes. She pleaded guilty to involuntary manslaughter. Photo: Reuters

Tichelman, 27, was named the “Harbor Hooker” and “Call Girl Killer” because of the nature of the crime, local news station KSBW wrote. Hayes, who has five children and a wife, was supposedly her “sugar daddy.” They had a continuing sexual relationship, which also included joint drug use. They used heroine and had sex the night he died, authorities said. Surveillance video at the Santa Cruz harbor showed Tichelman’s final moments with Hayes. She casually stepped over his body, finished her glass of wine and then lowered a blind on the yacht before she left him for dead.

When authorities talked to her “she was so callous," Deputy Police Chief Steve Clark later told NBC News. She was arrested eight months after Hayes’ death on July 4, 2014.

Tichelman is currently being investigated by police in her native Georgia for the death of her ex-boyfriend, who died in a similar manner as Hayes in 2013. She called police in a panic after Dean Riopelle, 53, apparently overdosed on something and was unresponsive. He died of heroin, oxycodone and alcohol overdose, CBS News reported.

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