NEW PORT RICHEY, Fla. – Opening statements started Friday morning for the trial of a man accused of killing four people in 2014.

Adam Matos, 32, is accused of killing his ex-girlfriend, her parents and her new boyfriend. Pasco County sheriff’s deputies arrested Matos in September 2014.

If Matos is found guilty, prosecutors will ask for the death penalty.

The trial is expected to last three weeks, according to our news partners at the Tampa Bay Times.

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Watch: Click or tap here to view Friday's opening statements

Watch: Click or tap here to watch part two of the Friday's trial