KRQE-TV reports (http://bit.ly/Zz56BW) that 21-year-old Brandon Casias entered his guilty plea to second-degree murder this week as part of plea deal that dismissed child abuse charges.
Casias admitted to holding the loaded gun to the head of his wife, Amber, during a May 2011 argument. But he claimed the gun went off accidentally when she pushed it away.
Police say two children, ages 1 and 2, were in the couple's home when their mother was killed.
He faces up to 12 years in prison when he is sentenced in the next four to six weeks.
Information from: KRQE-TV, http://www.krqe.com