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.
Sākotnēji Džošua nāves cēlonis nebija skaidrs, bet viņu apskatīja tiesu medicīnas ekspertu komanda, kuri konstatēja īsi pirms nāves gūtu traumu sekas acīs un smadzenēs, un šādas traumas nebija iespējams gūt nejauši.