"the circumstances" is the situation in which he felt the urge to commit the crime. If released, what are the chances that he would again have children with a

"the circumstances" is the situation in which he felt the urge to commit the crime. If released, what are the chances that he would again have children with a foreign citizen from a country that doesn't respect US child custody laws, and that she would plan to leave the country? I don't think he'd get married again. I don't think he'd have kids again. I don't think he'd get into a relationship with somebody from any of those countries (Russia, Japan, and very few others) again. Even if all of that happened, the relationship might not go sour, and if that too happened, most likely the woman would stay right here in the USA to enjoy life in the USA. After all that, it is still unlikely that he would murder, because he knows how it turned out last time and because everybody would suspect him. Also, don't assume he is an obvious psychopath. History is filled with non-psychopaths who murdered. It's tempting to label him now, with hindsight, because it helps to deny one's own capacity for murder. I'm sure he didn't think himself capable of murder until right before he did it.