You have been assigned a case involving what appears to be a murder-suicide. The female seems to be the victim and the male the perpetrator. However, there are some bothersome issues about the case. The weapon was found between the two bodies, but it was closer to the female than the male. The location of the wound on the male's chest is also curious. It appears that he may have been shot through the chest, a less likely place for suicides to shoot themselves than the mouth or the temple. He seems to have taken some time to die because there is quite a bit of blood around the room. What investigative clues would you initially look for at the scene?