Scout - Scout found out what happened when he went back to Boo Radley's place that night.She calmed him.While thay were walking back home.When they walk past a tree,they found a ball of grey twine in its knot-hole.They decided to only take it after a few days if no one comes to claim them.They picked it up and less than two weeks they found another one package of chewing gums.It shows that they are also quite greedy.They forgotten that the things that they took are from Boo Radley's house.
Jem - Jem seemed to had seen something when he went back to Boo Radley's place to get back his pants.He later then said that the pants was nicely folded and even sewed.He remembered that the pants was all tangled.He started to get frightened.Next morning,Scout and him found two figures that looked just like them.The person who is most likely to do it was Boo Radley.
Mrs Radley - Died in 1885 in the winter.Jem and Scout thought it was Boo Radley that killed her but Atticus claimed that she died of natural causes.