Testimony continues today in the capital murder trial of a man accused in the 2016 ambush murder of a San Antonio cop. The jury heard on Tuesday from eyewitness Ricky Lee Martinez. He testified that Detective Benjamin Marconi had pulled him over in a traffic stop shortly before Otis McKane stepped up to his patrol car and shot him without warning. Martinez said he was afraid to help Marconi afterwards because he had his girlfriend and their three kids with him. McKane could get the death penalty if he's convicted.