REOPENED: Missing in Altoona

When Sherry Leighty goes missing in 1999, her family is left wondering how a dedicated mother of three could vanish without a trace. A decade later, the cold case heats up when Sherry's sister launches a social media campaign to help solve her sister's mysterious disappearance. An online tip unearths the truth and a sinister family secret.Cold Case Files is sponsored by Homes.com - Looking for a new home? Head to Homes.com - They've done your homework.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

The longest running cold case of a law enforcement officer in the United States was the murder of Sheriff's Lt. Joe Clark.We have your holiday needs covered!IQ Bar: Need a quality snack? Text COLD to 64000 for 20% off all IQBAR products (including the sampler pack) plus FREE shipping!Hydrow: Wanna stay fit going into the new year? Save up to $600 off on your new rower with code COLDCASE at Hydrow.comRosetta Stone: Wanna learn a new language? Get your LIFETIME Membership for 50% OFF at Rosettastone.com/coldcaseQuince: Need everyday staples? Go to Quince.com/coldcase for free shipping on your order and 365-day returns!Mint Mobile: Want a new phone plan for the holidays? Shop Mint Unlimited Plans at MintMobile.com/coldcaseShopify: Need help with your business? Sign up for your $1 per-month trial at Shopify.com/coldcaseHomes.com: Looking for a new home? Homes.com has done your homework!See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Two women fight for their lives when an attacker ambushes them on a mountain trail; two men survive 14 hours adrift at sea.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

The 1998 brutal murder of 36-year-old computer analyst Lisa Valdez inside her San Francisco studio condominium was a mystery until advances in forensic technology helped solve the case 13 years later.Cold Case Files is sponsored by Homes.com - Looking for a new home? Homes.com has done your homework!See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

In 1987, 28-year-old Carol Murphy is found dead in a wooded area of Boulder, Colorado. It will take 20 years and a new technology to finally solve her murder.Check out our holiday deals!Happy Mammoth: Get your Prebiotic Collagen Protein risk-free AND get 15% off your order with code COLDCASE at HappyMammoth.comShopify: Need help with your business? Sign up for a $1 per month trial period at Shopify.com/coldcaseProgressive: Quote your car insurance at Progressive.com to join the over 28 million drivers who trust Progressive!Homes.com: Looking for a new home? Homes.com has done your homework!See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

A woman survives being choked and raped by a new friend that hid his criminal past. A young mother survives over 25 stab wounds from her ex-boyfriend.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

When 31-year-old real estate appraiser Mike Williams mysteriously vanishes while duck hunting in the Florida swamps in December 2000, authorities assume that he accidentally drowned in Lake Seminole. But the case is re-examined sixteen years later after the police receive a distress call from the victim's wife, Denise Williams.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

In a big city like Philadelphia, it's easy for an unsolved murder to slip into the cold files and be forgotten. But in this case, one victim's boyfriend was set on doing everything possible to make sure people didn't forget, and that police didn't stop investigating.Check out our holiday deals!!Jones Road Beauty: Want multifunctional, effortless makeup? Get a free Cool Gloss on your first purchase with code coldcase at Jonesroadbeauty.com IQ Bar: Looking for a brain boosting snack? Get 20% off all products PLUS free shipping when you text COLD to 64000Rosetta Stone: Want to learn a new language? Get your LIFETIME MEMBERSHIP for 50% off at RosettaStone.com/coldcaseCold Case Files is sponsored by BetterHelp! Get 10% off at BetterHelp.com/coldcaseProgressive: Quote your car insurance at Progressive.com to join the over 28 million drivers who trust Progressive!See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

A 17 yr old woman is taken to a secluded forest and sexually assaulted. A man's hand gets caught in farm equipment. A friend stabs and slashes a 14 yr old girl's throat.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

A serial rapist is terrorizing women around Portland, Oregon, and investigators are faced with an endless list of potential suspects until a hunch finally pays off. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.