travis mcmichael spent almost a decade of his life learning about duty and responsibility. reporter: arguing to the jury his quote, duty was necessary that february day. this neighborhood was being covered in suspicious persons and extra watches and neighborhood patrols and concerned citizens. reporter: insisting arbery s presence was suspicious. there is no evidence that it was a place of exercise and jogging for arbery. reporter: gregory s attorney continued the theme, arbery was in the neighborhood up to no good suggesting by his appearance. does not reflect the reality of what brought ahmaud arbery there. in his khaki shorts with no socks to cover his long, dirty toenails. laura hogue repeated over and