As soon as Collin Davis found out his ex-partner was planning to travel to Colorado to have an abortion in late February, the Texas man retained a high-powered antiabortion attorney — who court records show immediately issued a legal threat.

If the woman proceeded with the abortion, even in a state where the procedure remains legal, Davis would seek a full investigation into the circumstances surrounding the abortion and “pursue wrongful-death claims against anyone involved in the killing of his unborn child,� the lawyer wrote in a letter, according to records.