The discovery suggests that if bears learn to associate traps with easy prey, the risk of encounters with humans could rise.

Luckily Nierer's neighbor, Mike Bramich, saw the attack and rushed out with his gun. Stock image of a black bear on a residential street. Stock image of a black bear on a residential street.

A neighbor shot and killed the bear after it knocked Andrew Neirer to ground and started biting and scratching him.

A neighbor -- who saw the attack -- sprung into action, grabbed a gun and shot and killed the bear. A spokesperson for the Game Commission said black bears, under normal circumstances, are not ...

Newswatch 16 spoke with the Pennsylvania Game Commission on Tuesday, who said the attack is considered abnormal behavior for a black bear at this time of year, and as a result, are investigating ...