Initially the cause of Joshua's death was unascertained, but the case was reviewed by a team of medical experts who discovered evidence of trauma in the eyes and brain which could only have been caused non-accidentally, close to the time of death.
起初，约书亚的死因没有确定，但医学专家组对该病例进行了复查，并发现了眼部和脑部具有在接近死亡时间时由非偶然情况造成创伤的证据。