Brita cleverly accused the killer of "framing" her for 
the murder, by deliberately leaving track and field 
equipment in the courtyard. But the truth is, Brita herself 
left the equipment there. 
    She knew she would have to leave the pole behind, so she 
tried to conceal its purpose by adding other pieces of 
equipment. He used the soft soil left along the outer 
perimeter of the wall that was being prepared for the 
gardening work as a landing area. 
    Unluckily for Brita, you figured out what she did in
 order to "walk through walls." Or rather-- over them. 

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