phoenix was running in the park when he tripped and fell on the ground in the dirt because he noticed that his shoes were shit and worn to hell so he went to the shoe shop to get new shoes
when he got there the shop was locked so he broke the window and got in and saw the man was dead!
gumshoe came and said the killer must have locked it but only the owner has the keys
they searched and found a bedroom so the shop must be the guys house
they looked around and saw shoes of all sizes
phoenix used logic and figured out how the crime happened, the killer killed the man and hid in the biggest shoe in the shop to wait for someone to break the window so he can leave without unlocking teh door to keep it a perfect locked house
they searched the shoes and found the killer and he confessed to the murder
the end