A detective story

So, you have to write a detective story starting like that:

That rainy evening Rosy was as usual at home, she was ....

What happened? Rosy was found stabbed with a knife. There´re three suspects:

a gardener who has been working for Rosy for 20 years
Rosy´s son who leads a bit carefree lifestyle and doesn´t work
a neighbour - a student girl who rents a room next door and badly needs money

Here are the evidences the detective found:

a torn teddy bear, a corkscrew, a postcard from Singapore, a leather glove, a foreign coin, a blood-stained T-shirt, a CD, a broken flower pot, a cap, two old magazines “Vogue”, an empty whisky bottle, a white silk scarf, a bus ticket.   

Use Narrative Tenses: Past Simple, Continuous and Perfect!