Born in Asia during the early to mid 1990's, Yuri is a genius when it comes to explosives. She was rumored to have died in an accident while researching new explosives during conflicts between warring nations. However, she surfaced again during the Rex Laboratory bombing incident, with reports of having put her new explosive technology to use.
The bomb that can be seen in Yuri's shop model. Note that it is actually the bomb in Fastline mission from Counter-Strike: Condition Zero Deleted Scenes