Bar fight leads to a Dow City man dead

Friday night and into Saturday early morning I was coming home from Omaha and I saw there was a car that was sticking out of a trailer house so we called one of our drivers and asked him about it who lives in Dow City and he told us that there was a man shot and killed. According to the new's the two of them were sitting in the bar all night and then they got into a fight and and so Larry decided to give up and he left but then Wingrove didn't think that the fight was over and he and his buddies chased him down highway 30 and Wingrove was standing besides this house and Larry was being chased down the rode when Wingrove fired multiple time into Larry. In the mean time some neighbors herd all this went out and broke Larry's back window out of the car and pulled Larry out of the car but he was dead. Then Wingrove went to the ladies house that the car was sticking in and told her to call the cops but she already did and when the cops showed up Wingrove turned himself in. Wingrove is held on a one million dollar bond. So my question is why did Wingrove have to take this so serious and kill him and why did he have a gun with him when he was just sitting in the bar drinking? Anybody that is in the bar at 2 o'clock in the morning shouldn't probably be driving or have a gun on them anyways. Nothing good will happen at 2 in the morning.