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A Colorado man charged with murdering his wife after consuming edible marijuana is now pleading not guilty, by reason of insanity.

Richard Kirk allegedly shot his wife Kristine at their home in April 2014.

The shooting took place after Kirk ate a bite-size “karma candy orange ginger,” Fox 31 reported.

He was said to be hallucinating, acting erratically and jumping in and out of windows in their home.

Kristine called 911, saying she was terrified. The couple’s three young sons were also at home at the time.

Kirk had originally pleaded guilty.

But now, the children’s grandparents have filed what could be an unprecedented lawsuit, claiming wrongful death in that the marijuana retailer should have informed Kirk of the potential side effects.

Managing attorney of Guster Law Firm, Eric Guster, weighed in on Happening Now, saying the family will need to prove that the candy was the only reason that caused Kirk to commit the shooting.

“It’s going to be extremely difficult to hold them liable,” he said. “It’s going to be a stretch. It’s almost like blaming someone for something without any proof.”

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