Roger Roca

The provided news articles detail explosions at a Bolivian military facility in Viacha. These incidents resulted in multiple fatalities and numerous injuries due to the detonation of pyrotechnic material. The first article reports at least 10 deaths and dozens injured, with seven people missing. The second article states at least two deaths and 58 injured, with fears of a higher toll. Both articles mention the location as a military facility storing pyrotechnic material, with one specifying an artillery regiment. The events occurred on a Friday afternoon. The name "Roger Roca" does not appear in any of the provided snippets, making it impossible to provide a summary or description of this individual based on the given information.