NUMBER_TOKEN year old susan dahl who lived in fort collins colorado was selling her house on august NUMBER_TOKENth the real estate agent led herself into doll's house and found something odd in the hallway it appeared that someone had urinated and defecated in the hallway in the upstairs bedroom the real estate agent found the nude dead body of NUMBER_TOKEN year old susan doll the real estate agent immediately called the police doll had a cut phone line wrapped around her neck it was later determined that she had been strangled to death she had also been raped the police looked around the house and they found more bodily fluid on the second floor they found semen in three separate areas if you listen to the first episode of into the killing you'll know that dna testing was only used to identify a murderer two years earlier in NUMBER_TOKEN in england dna technology was not yet a major crime-fighting tool in the united states so the killer may not have known that his body fluids could be used to identify him or he simply didn't care the police figured out how the killer got into the house the killer climbed up on the fence and then on to part of the roof then he entered through a second floor window on the windowsill he laughed seven fingerprints the police ran the fingerprints but they didn't find a match based on some elements of the crime scene the investigator speculated that the killer was probably a young man the first reason they thought this is the way he entered the house older men don't generally climb fences to get onto roofs to break into a house that's usually the way a kid breaks into a house also the crime lacked the sophistication of an older sex criminal an older experienced predator probably would have cleaned up and possibly used a condom they would not have left so much evidence behind nothing was stolen from the house except for her underwear the investigator searched the records and just NUMBER_TOKEN days before the murder someone broke into susan doll's house NUMBER_TOKEN pairs of dolls underwear were taken the thief also ejaculated on a towel because of the sexual elements of the break-in the police thought that the same person who stole the underwear NUMBER_TOKEN days earlier also killed doll on the night of the first break-in several people saw a young man with shoulder-length blonde hair on a bmx bike hanging out in front of her home a sketch was created it released the public tips came in but it did not lead to any arrests
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