[Tracey Duell]

Can't seem to add a photo but it's a very small spider, the abdomen is a dark chocolate colour (abdomen is about 2mm) with white patches/spots on the abdomen & the legs are long & spindly & rusty brown in colour. It has 2 little prong-like antennae which is also a rusty brown colour. It attacks & kills other spiders & bundles it's prey in a tight web.

[odinn7]

I need a location and really, a picture.

Spiders do not have antennae. Spiders are classed as having 2 body parts, 8 legs... anything with antennae are not spiders.

As for attacking other spiders, most spiders are territorial and will kill each other. If you happen to see spiders living near each other, it is only because they can't really see and they haven't discovered each other yet. Most spiders will not live together in harmony and the smaller ones end up as food.