Remembering Allison Feldman 3 years after her murder; case remains unsolved

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It's been three years since Allison Feldman was found murdered in her Scottsdale home. (Source: 3TV/CBS 5) It's been three years since Allison Feldman was found murdered in her Scottsdale home. (Source: 3TV/CBS 5)
Vigil held Saturday night (Source: 3TV/CBS 5) Vigil held Saturday night (Source: 3TV/CBS 5)
Detectives said there was no sign of forced entry, making the murderer a mystery. (Source: 3TV/CBS 5) Detectives said there was no sign of forced entry, making the murderer a mystery. (Source: 3TV/CBS 5)
Police said the case is "very much an active investigation." (Source: 3TV/CBS 5) Police said the case is "very much an active investigation." (Source: 3TV/CBS 5)
Family members continue to share Feldman's story, hopeful someone will have the key piece of information that breaks the case. (Source: 3TV/CBS 5) Family members continue to share Feldman's story, hopeful someone will have the key piece of information that breaks the case. (Source: 3TV/CBS 5)
SCOTTSDALE, AZ (3TV/CBS 5) -

Loved ones of a murdered Scottsdale woman are spending Saturday remembering her and making sure her unsolved case stays in the public eye.

Allison Feldman, a 31-year-old medical sales rep, was murdered in her south Scottsdale home on Feb. 17, 2015. Police say she died from blunt force trauma. 

There's still no suspect in custody.

Feldman's family organized a vigil for Saturday evening in remembrance of her.

The vigil began 7 p.m. at the Scottsdale courthouse. Loved ones gathered with candles for an evening of songs and remembrance of Feldman's life.

Feldman worked as a medical sales rep in the Valley. Her boss, Jeff Ciardi described her as his little sister.

"It's extremely difficult to think it's been three years since she passed," he said. "I still feel the emotions I feel that same night three years ago... having to call her friends and tell them the tragic news."

Felman's mother, Elaine described her daughter at the vigil as someone who was very devoted to her job.

"It has been said no matter when she was called, even on a Saturday night, even if she was out with her friends, she would drop everything she was doing and drive to wherever she needed to be," she said.

[ORIGINAL STORY: Police ID woman found dead in Scottsdale home (Feb. 18, 2015)]

Feldman's family members say they continue to share her story in hopes someone will have the key piece of information that breaks the case.

Recently, they've started raising money for a University of Arizona study abroad scholarship in her name. Allison studied abroad while in school and loved it.

[RELATED: Reward increases to $10K in Scottsdale murder case (June 14, 2015)]

"Somebody may think of something. It’s been a while and so they didn’t realize the piece of data that they thought wasn't important at the time but may be now, they may think of something that’s important to the case," said Feldman's dad, Harley Feldman.

Scottsdale police detective John Heinzelman told AZ Family Feldman died of blunt force trauma.

Officers collected 433 pieces of evidence from the scene the day Feldman's body was found, including her killer's DNA. 

"The biggest problem is the suspect, the offender who did this crime, is not in our DNA system. As far as we know, he has not been arrested," said Heinzelman.

"This could be a juvenile, this could be someone who has never been arrested, it could be someone who's in custody in some other state who just hasn't had his DNA collected yet," he explained.

Right now, he said one of the key missing pieces is figuring out a motive. Why would someone kill Allison Feldman?

[READ MORE: One year later, Scottsdale woman's murder remains 'priority' for police]

[READ MORE: Loved ones remember Allison Feldman, 2 years after her unsolved murder]

"We are still actively working it as if it just happened yesterday," says Heinzelman.

"We want him caught," Feldman's father has said. "We just don't like the fact that he's free and she's not. We don't like the fact that he could do this to somebody else." 

Anyone with information related to this case is asked to contact the Scottsdale Police Department at 480-312-5000 or call Silent Witness at either 480-WITNESS (948-6377) or 1-800-343-TIPS (8477). Spanish speakers may call 480-TESTIGO (837-8446). (Click or tap phone number to call from this story on your mobile device.)

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