Animal cruelty rescue case

I received a call on Sunday around 8:30 pm about a dog, Bruno. Someone had attacked him with a knife and cut open his stomach area. When I reached the spot, Bruno was in unimaginable pain. Since it was a Sunday, none of the vets were available. However, one vet guided on how to bandage the wound till Bruno could get proper medical help the next morning.
According to the veterinary doctor, someone has cut Bruno's stomach with a sharp object like knife or glass bottle. Fortunately, Bruno's internal organs are not damaged.
Bruno had to undergo a one and half hours long surgery, he is now out of danger.