Riddle me this

[Losty]

Still puzzling on yours Brian

A rich and handsome man named James Leonard was murdered on a Sunday afternoon. At the time of the murder there was: the maid, the cook, the butler, the gardener and the wife.
Maid: I was fixing the table.
Cook: I was cooking breakfast.
Butler: I was polishing the silverware and the dishes.
Gardener: I was planting tomato seeds.
Wife: I was reading a book.
Who did it?

Cook?

---

...me?

Good answer, not the one I was looking for.

Boru

A hint?