Some states use "US" as a prefix for "Uniform Support" cases involved in interstate child support enforcement. However, given the rarity of both names together, the prevailing theory among public record sleuths is that US-15820 is a consolidated case —meaning a single judge was assigned to hear both the immigration removal proceedings of Izamar Gutierrez and the special findings for Bella Rossi’s permanent residency simultaneously.
Evidence to Focus On
Here’s a solid, professional text based on the subject line you provided: US-15820 Bella Rossi and Izamar Gutierrez