This is exactly what has happened. The United States has taken the exact concept of the Magnitsky Act and applied it. At this point, I think there are something like 54 names of people who have been put on the federal OFAC sanctions list and have their visas banned and their assets frozen on the basis of a criminal standard.
The only thing that may be different between the current sanctions and the Magnitsky sanctions is that I'm not sure whether the people under the Ukrainian sanctions have the ability to go to U.S. court to challenge the designation. I haven't researched the current sanctions enough to know that. But everything else is exactly the same, effectively, sanction for sanction, word for word, and consequence for consequence.