A neighbor who did not want to be identified previously told CNN the two men have been “quibbling” over yard waste for years.

According to the neighbor, Paul and Boucher share a property line in a gated community and have a long-running dispute over grass clippings and leaves blown onto each others’ lawns.

The neighbor did not witness Boucher allegedly assaulting Paul on Friday, and therefore could not say definitively if this is what led to the attack.