• In 1995, Krystal beslanowitch (pictured below 1)was found dead along the Provo river (sit pictured below 2) in Wasatch County, Utah. Her head was crushed by a granite rock. County sheriffs deputy Todd Bonner was the cop who found the body. The case went cold for 2 years after 1995. 11 years later the case reopened in 2006. 
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• In 2013, an m-vac, a machine that in use can find touch DNA on surfaces, was used to find DNA on the murder weapon. The DNA pointed to a Joseph Simpson(pictured below 3) in Florida. At time sheriff of wasatch county Todd Bonner staked out a smoke shop, and when Simpson flicked out a cigaret butt. Bonner picked up the butt and found a solid DNA match to Simpson. Simpson was charged with argovated murder in 2013. He now has life in prison.
• The main reason this case was solved was the invention and use of the M-vac. We can rest assured knowing that touch evidence is now easier to find. Let's hope crime lessens in the wake of this nvention 
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 http://fox13now.com/2013/09/19/arrest-made-in-cold-case-homicide-from-1995/

https://www.ksl.com/?sid=26922895

https://www.forensicmag.com/news/2016/10/m-vac-dna-leads-cold-case-conviction-life-without-parole-killer

 https://www.deseretnews.com/article/865586714/Arrest-made-in-1995-Wasatch-County-cold-case-killing.html