LAS Vega man pushed a security guard to his death. Here’s why he might serve less than three years in prison.

A Las Vegas man shoved a security guard to the pavement, killing him. Now, he could be free in just two years and four months.

Last month, Regional Justice Center District Judge Jacqueline Bluth sentenced Pedro Lizano, 35, to 2 1/2 years to eight years in prison for the death of…