The article says that Brooks never paid, so the fence on his side of Ames' property was paid for by Ames alone. It was Brooks who then went on to be a jerk, repeatedly damaging the fence.
Speaking in general terms my opinion (and I cannot believe I've let myself be drawn into this many replies) is that Ames is a jerk on general principles because of his fence related litigation.
I did not speak specifically to Ames being a jerk in relation to Brooks.
Course if the reports of the number of rounds fired are true and it took him 6 shots to down an old guy with a big stick then maybe he IS a jerk on all counts.!