SAN ANTONIO -

A jury decided Friday night that James Morrison is guilty of capital murder.

It took more than four hours for jurors to deliver their verdict, and when they did they decided Morrison shot and killed his girlfriend’s mother, Laura Moten, 46, and her daughter, Krystle Moten, 23, and seriously wounded his girlfriend Candice Moten.

The shootings of three women on the night of April 18, 2009, were preceded by a heated argument between James Morrison and the women, prosecutors said.

The women had accused him of slashing the tires on their car.

“If there’s not a more appropriate time to curse at someone and to yell at someone, I can’t imagine what it is,” prosecutor David Henderson said during closing arguments. “But what you have to remember is at that point it was just another bad day."

They said Morrison then committed and murders.

Morrison’s attorney noted that the women’s combined weight was just under 1,000 pounds.

He argued that Morrison fired 15 shots at the women in self-defense as they attacked him while he was on the ground.

“They were violent people," argued defense attorney Joel Perez. “And literally -- no pun intended -- they threw their weight around.”

But the jury rejected the self-defense claim and voted guilty of capital murder.

They now have just two options when the punishment phase begins Monday.

They can send Morrison to prison for life without parole, or give him the death penalty.