A Telegram post reported that 46-year-old Sergeant Roman Trofimchuk, known by the callsign 'Bear', was killed on May 29, 2024, during a combat mission in the village of Nevelske, Donetsk Oblast. Trofimchuk was born on October 6, 1977, in the city of Rivne and had previously served in the Ministry of Internal Affairs of Ukraine, retiring as a police major.

Before the full-scale invasion, he managed the security for a private enterprise. In March 2022, he voluntarily joined the National Guard, serving in the 15th Separate Battalion. His sister, Zhanna Kravchuk, described him as someone who never refused help and saw no dead ends. He was buried in his hometown, leaving behind his mother, wife, children, and sisters.