What afterlife should my OC go to?

I'm trying to make a borderline case about which afterlife my OC does to. I'm aiming to make Sparrow a tragic figure, but the reader can still understand why Starclan may condemn him.

When Sparrowkit's Clan was being evacuated, they have to leap across a river. His mother, Fleckheart accidentally drops him as she jumps and he falls into the water. When he washes up onto shore, he is far down stream. His clanmates spend a days searching for him, but he is too far away and they assume he is dead.

Sparrowkit stumbles around until a twoleg discovers him and adopts him as a kittypet. As he grew older and explored beyond his house, he encountered some Clan cats. He let his old clanmates know he was alive and Fleckheart visited him. Despite his mother's pleading, Sparrow said he didn't want to the return to the wild after he almost died as a kit. Still, he visited Fleckheart throughout the years.

One day, a wild fire destroys the local forest. The land can no longer support the Four Clans and they venture to far away places. Three elders and an older medicine cat volunteer to stay behind, so they "don't burden" the traveling party. When Sparrow discovers that Fleckheart is amongst them, he becomes the four's caretaker. He tries to convince them to become kittypets, but they are too prideful to do so and don't know if the twolegs would simply euthanise them.

Despite having a warm house, Sparrow practically lives outside to hunt for the four elders. However, the task is too much for a single cat to do. Despite his best efforts, two elders die and the medicine cat is snatched by twolegs. Sparrow and Fleckheart shelter in a dush together, unsure what to do. For the last time, he tries to convince his mother to take her chances with the twolegs. However, Fleckheart says she is still hopeful and they can find a way to survive as long as they still breath.

However, Sparrow doesn't believe her optimism and thinks her starvation was inevitable. As a mercy kill, he secretly poisons her. Due to his guilt, he unable to eat properly and soon dies himself. At his trial, Fleckheart attempts to run up to him and shouts she forgives him. However, Starclan cats hold her back and says someone who kills their innocent mother can't be forgiven. Despite his good intentions, Sparrow took Fleckheart's choose to live away from her.

Would you send him to the Dark forest or Starclan?