Costumes/Props: Organising

I was selected to prepare the costumes needed for the murderer / intruder. The costume I need to get are: glasses, fake knife, walking / outdoor shoes and a black jacket. 

I went on amazon and found a pair of glasses that would suit this costume and character very well.

I also went on amazon to look for a fake knife and found a knife that is already stained with blood which further helps the image which we are trying to portray of this murderer/ intruder as he has hurt the young boy - this knife would work really well and is exactly what we are looking for. 

For organising the actual costume, of what this character will be wearing, once we have absolutely confirmed the actors and dates set and measurements then it will be easier to find a costume - I am sure this actor will have some sort of black jacket, walking trousers and outdoor shoes - but if not then I am able to provide this character with this costume as I have easy access to them.