I think people don't really understand Trump supporters, but reactions to the murder of Renee Good should be a lesson.
In the hours following her murder, the immediate response of POTUS and the WH administration was to lie and smear the victim. This was enough for Trump supporters who believe in him. He said it, they believe it because he said it. After that they got enough to confuse them and argue that it didn't happen, or what the ICE Agent did wasn't that bad, and even if it was she deserved it. Sigh of relief for them, their belief in Trump is safe, despite the evidence.
Other Trump supporters support him because they want to see people suffer. Women, poor folk, the middle class, non-whites, gays, Jews, liberals, Muslims, civil servants, rich people, Hispanics, immigrants. Bitter, angry, hateful people who followed Trump because he is just like them. They get a buzz out of her murder. She was a passionate, liberal, gay, American woman, everything they hate.