LAS las vegas (FOX5) -- With much less than 15 human being DNA cells left come sample, ras Vegas city Police submitted a 32-year-old cold situation to a Texas activities for experimentation in January. 6 months later, police positively determined the suspect involved.

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LVMPD Lt. Beam Spencer determined Darren R. Marchand, a las Vegas resident, together the man connected in the fatality of a 14-year-old Stephanie ann Issacson in 1989. A monetary donation toward addressing cold cases led come the identification.

"I"m happy they discovered who murdered by daughter," Issacson"s mom said in a statement check out by Spencer. "I never thought the instance would it is in solved. It"s good to have some closure, however there is no justice for Stephanie in ~ all. Us will never ever have complete closure due to the fact that nothing will certainly ever carry my daughter earlier to us."


Issacson was walking native her home to Eldorado High school at around 6:30 a.m. On June 1, 1989. As soon as Issacson didn"t return house from institution that day, her father dubbed the school and also her friends and also realized his daughter had never make it come school. Issacson"s dad filed a police report with LVMPD.

Later that night, Issacson"s human body was uncovered on a follow not far from she walking path to school. Police and the coroner"s office determined she to be sexually assaulted and died indigenous strangulation.


LVMPD said they had actually tested lot of samples of DNA in the case from 2007 come 2020. In 2007, a DNA profile was developed from a semen sample on among Issacson"s clothes items, yet there to be no match.

Police and forensics investigators acquired word the a donation made specifically to investigate cold cases. Ras Vegas resident Justin Woo made the donation in Nov. 2020 and also Issacson"s situation was selected to investigate. 

In Jan. 2021, the DNA sample was sent out to Othram Labs in The Woodlands, Texas for analysis.

According come the Othram website, the labs analysis DNA from trace amounts of contaminated or degraded proof to help solve criminal cases. Othram has actually helped solve several situations through forensic genealogy, according to the Othram website and also LVMPD.


The DNA proof sent to Othram led to Marchand, a las Vegas resident. Spencer stated Marchand was arrested in 1986 in link to the murder of Nanette Vanderburg, a woman who was strangled in she home. Spencer stated the instance was later dismissed as result of a absence of evidence.

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Marchand committed self-destruction in 1995, follow to police. Spencer stated they think the killing of Issacson to be a random attack.

Spencer stated solving the situation wouldn"t have been possible without the work-related of the LVMPD forensic team and also the donation made by Woo. To do a donation toward solving cold cases, walk to the LVMPD foundation website and also designate the donation toward "Homicide Cold Case."