10News confirmed with one neighbor that there have been yard sales at the home over the last couple of weekends, including one on Saturday.
It's unclear who posted the ad or whether it has anything to do with Sunday's incident.
One family friend told 10News he is in shock over what has happened.
"We've known them longer than we've known anybody," said friend Jared McCarthy. "A few days ago, I guess they were having problems."
McCarthy said the family was afraid something like this would happen.
"[They've] been worried about this for some time," he said. "They've been expressing concerns to a lot of people for a while and nothing happened."
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