Serial killers keep trophies.
This from the article: “Some women who underwent abortions by Klopfer through the years are now agonizing over whether their babies’ remains are among those found.” Sounds like total BS. Murderers agonizing over the disposition of the victim bodies?
Pop culture "religion", Hollywood karma. A corrupted parody of Christianity that says people have souls, and these souls are never at rest when taken in acts of violence, never properly mourned or buried. This could make some women uncomfortable, I suppose.