If God didn't want animals to kill each other, I wonder what he gave dromaeosuarids their claws for. And don't say they were something he added on after the fall; these animals' entire bodies are set up to optimize their ability to use the claws on their feet as weapons. A dromaeosaurid with none of these adaptations would be a completely different animal.
The only known example of two dinosaurs preserved in combat shows how they were used:
http://www.dino-nakasato.org/en/special97/Fight-e.html
The claim that god did not intend for animals to kill each other may be the creationist claim that I hate the most. Not only does it go against the idea of God's omnipotence (and relativistic predetermination), as well as the fact that ecosystems RELY on predators to function properly, but it even contradicts the Bible.
This may be my favorite Bible passage, since the people who believe the fallacy that I described never seem able to deal with it. This is from where God is describing how his creation glorifies him in Job; it's Job 39: 26-30.
"Does the hawk take flight by your wisdom and spread his wings toward the south?
Does the eagle soar at your command and build his nest on high?
He dwells on a cliff and stays there at night; a rocky crag is his stronghold.
From there he seeks out his food; his eyes detect if from afar.
His young ones feast on blood, and where the slain are, there is he."
So where's God talking about how predators are a corruption of his creation that humans caused? It's clear from this passage that predators are also part of his plan, and glorify Him just like every other part of it.
If the world was created within 6 days between 6,000 and 10,000 years ago; then what were the dinosaurs about ?
Can't you accept the idea that God's plans include more than just humans? We may be only a tiny part of his world.