Hollywood police said when they found him the dog's paw was sticking out of the suitcase.
"Our team of specialists, emergency doctors and staff worked for over an hour to keep Ollie with us," the hospital said in a news release. "His body simply could not overcome the inflammation and damage to his body caused by his horrific ordeal."
Hollywood police said the dog's paw was sticking out of the suitcase when officers found Ollie about 1 a.m. Tuesday behind 1945 Lee St.
Ollie had severe lacerations to the top of his head and body.
It was later determined that Ollie had been stabbed and beaten.
Ollie's story quickly went viral after he was rescued.
"People from all over the country and a couple of international people have reached out to let us know they have seen Ollie's story and they are pulling for him," said Dr. Nicole Patterson, a veterinarian at Hollywood Animal Hospital.
The Grateful Paws animal rescue group started a Gofundme page to help Ollie, and what happened next surprised everyone.
"Their original goal was $1,500 and they got $35,000," Patterson said. "It is just incredible that people have been so involved and compassionate."
Unspent money collected for Ollie will now go to help other animals in need.
"The outpouring of love we have seen over the last few days in support of Ollie is an affirmation of the true goodness in people," the hospital statement said.
Police are still searching for whoever injured Ollie and left him to die.
"Whoever did this to that poor animal, I hope they find them," Randie Cohn said. "I would have adopted him myself. I said to my husband, 'Can we take Ollie?' And he said, 'Well, let's see how he does.' And I am very sorry that happened to him."
Anyone with information about who injured Ollie is asked to call the Hollywood Police Department at 954-967-4411 or Broward County Crime Stoppers at 954-493-TIPS. A $10,000 reward is offered for information that leads to an arrest.