Interviews with acquaintances of the victim also suggested that a percussion cap revolver may have been involved, and it became of critical importance to reconstruct the circumstances of the crime, since the weapon itself was not recovered. Weapons similar to that allegedly used were test-fired under controlled conditions and residues from the muzzle and cylinder blast were compared to residues at the scene. Based upon these comparisons, standard distance determinations, pathological findings, and the characteristics of the recovered projectiles, the dynamics of both victims and perpetrator could be reconstructed. Their relative positions and the sequence of shots were also reconstructed. The comparisons conducted in this case revealed that black powder revolvers produce large amounts of unusual residues which supplement the usual range of firearm evidence to make even complex reconstructions possible. (Author abstract)