@SmiYa0126 has stressed treating for shock since it's the most important issue after a predator attack, even if there are no apparent injuries. Shock can last more than a day after the attack so continue the sugar water and electrolytes.
Did you know that spider webbing can stop bleeding? Native Americans kept it in their first aid kits. I bet most coops have ample supply.
Bobcats are one of the more cunning and persistent predators. They will swoop in and take a chicken standing right at your feet, and they will come back again and again until they are discouraged. I've also lost chickens to bobcats.
They can climb high fences, so electric hot wire is necessary if you have a high population of them. I bait the hot wire with a fish wrapped in a wire "burrito" wired to the hot wire. Over time the fish dries out, but it is no less effective to encourage a predator to engage with the hot wire.