Who Did It?

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Across
  1. 3. A plant with petals called
  2. 4. Type of shoes used for sport
  3. 6. Item with a keyboard, trackpad and screen
Down
  1. 1. First month of the year
  2. 2. Eve's gender
  3. 5. Opposite of mature
  4. 7. Colour that represents "stop"