But once they stepped inside their Richmond home in Virgina, US, they discovered a scene likes something out of a horror film.
Mr Murrin told WRIC: “We noticed something when we walked in. I walked in with my mother and there were blood spots on the grounds, we looked upstairs and we could see trails of blood coming from upstairs going all the way down.”
But the intruder did not expect to be greeted by the family’s guard dog, which had stayed inside the house while his owners were out.
“They know him as a big dog, the community loves him, the kids come up to him and want to touch him and play with him,” he said.