@Kenshi you successfully smash the halfing as well (unsurprisingly, minotaur vs halfling) so you can kill her, maim her, whatever you want.
@Dark Cloud you cut the horses loose and head to the cart. You find a selection of tools and supplies. Some of them look like pickaxes and such, other tools look more delicate and you're unsure what their use is. There is some preserved meats, blankets, and miscellaneous ropes and pullies.
Mechanically speaking you've just found a carriage filled with
Good Loot and you will get to roll more dice on your loot rolls later in a different phase. The crates are quite heavy for a kobold however, so you'll have to solve the problem of getting them back up the cliff pass.