No Justice: Convicted Cat Strangler, Mutilates More Cats & Kittens While On Parole

[Sugar Cookie]

A 34-year-old man who admitted to strangling three cats in 2023 has killed seven more cats and kittens while on parole for the first crime. Cory D. Martinson has a twisted propensity for killing cats and seems to make a game of acquiring them and then inflicting fatal injuries.

Martinson has been charged with four counts of cruelty to animals and six counts of animal neglect for killing a mother cat and her kittens – he was supposed to be caring for the felines for a friend who was experiencing homelessness.

But Martinson did not provide the woman’s cats with care – he tortured and killed them. According to court records, Martinson called the Sioux Falls Area Humane Society to tell staff that “his cats were in dire need of medical attention.” Officers made arrangements to pick up the mother cat and two kittens – when they arrived, Martinson only gave them two cats, which he claimed were strays. Both cats were so badly injured, struggling to breathe and unable to walk, that they had to be humanely euthanized.

The next month, Martinson tried to adopt MORE cats from the shelter. He told staff he could not afford food, litter, or the adoption fee and let them know that they should not hold the condition of his prior cats (the ones who had to be euthanized) against him because they were just strays.

As reported by the Argus Leader, Martinson’s parole officer contacted animal control after he told her that the cats “become injured ‘because he was an a–hole to them.’” The parole officer was also allegedly told that the remaining cats had all been killed, while admitting that the abuse was not a “one-time incident.” The parole officer also confirmed that Martinson was not supposed to be in contact with or possess any animals because of his prior 2023 cat killing spree.

The cats who perished at Martinson’s hands died in horrific ways. He admitted to strangling three cats in 2023. He killed four of the kittens in 2024 by “backhanding them in the forehead with his knuckles” until they died and then throwing their bodies in the garbage like trash.


The injured cats euthanized after being picked up by animal control officers were tortured. Martinson allegedly held them under their ribs and pulled their back legs until they made a “noise.”

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VICTORY: Convicted Cat Strangler, Mutilates More Cats and Kittens While on Parole - Animal Victory

Sioux Falls, SD - A 34-year-old man who admitted to strangling three cats in 2023 has killed seven more cats and kittens while on parole for the first crime. Cory D. Martinson has a twisted propensity for killing cats and seems to make a game of acquiring them and then inflicting fatal injuries.

animalvictory.org

**Update (April 2, 2025):** The case number for the 2025 case is 49CRI25-627. This case is being handled in Minnehaha County, South Dakota. In contrast, the 2023 case was managed in Brookings County, South Dakota. In the 2025 case, Martinson is facing four felony counts of cruelty to animals and six misdemeanor counts of neglect, abandonment, and mistreatment of animals. Currently, Martinson is representing himself. There are no hearings scheduled at this time, and no bond information is available. An application for a court-appointed attorney has been submitted. An advisory hearing is scheduled for April 16, 2025, at 9:00 a.m.

 

[Rebooto]

I wish this would be his last hour. He should die, so he would never ever have to try thinking, what he obviously isn't capable of.

 

[Sugar Cookie]

A Sioux Falls man, previously known for killing cats, has been sentenced to five years in prison after pleading guilty to two counts of Animal Cruelty.

Cory Martinson was on probation for a 2024 Brookings County conviction of animal cruelty. Due to that conviction, he was prohibited from possessing or residing with any animals, a violation that he broke.

In July 2024, Martinson took temporary possession of 7-8 cats from someone on Facebook Marketplace who was looking for someone to watch them.

Martinson surrendered two cats to the Sioux Falls Humane Society who were so injured, they had to be euthanized. The remaining cats were never found and presumed to have died under Martinson’s care. He later admitted to killing four of them.

On Oct. 10, 2025 Judge Susan Sabers sentenced Martinson in Minnehaha County.

KELOLAND News first reported on Martinson after three cats died under his care in 2023. Martinson later admitted to “taking their lives by choking them.” He faced three counts of cruelty to animals.

Convicted cat killer sentenced to 5 years in prison

SIOUX FALLS, S.D. (KELO) — A Sioux Falls man, previously known for killing cats, has been sentenced to five years in prison after pleading guilty to two counts of Animal Cruelty. Cory Martinson was on...

www.yahoo.com

@runninfawn

I hope he is forced to choke on some dicks while he is in prison.

Booking Key Dates​

Martinson, Cory D.​

Transaction #72948​

Sentence Date	County	Crime	Sentence Length	Sentence Adjustment
10/10/2025	Minnehaha	Cruelty To An Animal()	5y 0m 0d

Initial Parole	Next Review	Good Time Release	Adjusted Good Time Release	Suspended Sentence Release	Term Expires
08/19/2026				01/11/2031	01/11/2036