from this we can tell that the assasin (s) was a carpenter, why else would he (she) be walking around at night with a hammer?

Carpenters may have something against Js. They crucified JC and they are now suspected of liquidating JJ

To all neanderthals, a hammer is the size of domestic claw hammer,flat faceted, made of iron...they have never heard of diamond tipped, they know a sledge hammer is a hoe and not a hammer, in fact electric hammer is mugithi to their waxed ears.

They think a murderer on a mission to terminate life will come try break a window with a pliers!

Reading wide doeast finish the eyes.
Google is free.

Cannot be any type of hammer, hitting a bullet proof window with a hammer is akin to trying to tear an ajwala or blown up condom with a hammer, it will stretch and warp, let's not go to material science, the windows in this case are "shattered", when S classes came out, after i graduated years ago with a technology degree, i used to work as a mechanic in a prestigious merc garage, i remember the windows of S classes appeared "multi layered", but in armored vehicles it is thick layers and some funny kind of very thick adhesive that cannot simply be 'hammered', this thick gel is part of the issue, and i have worked with all types of hammers and tools powered, pneumatic, hydraulic, e.t.c, stretching a very thick ajuala with a diamond tipped electric hammer will do dot.