A man recruited to be a triggerman in a robbery scheme in Norfolk was sentenced on Friday to 33 years in prison for shooting and killing a former police sergeant. Andra Brown, 21, pleaded guilty to the first-degree murder of 83-year-old William Irving Moore. He also pleaded guilty to the aggravated malicious wounding of Moore’s daughter, using a firearm in the commission of a felony and conspiring to steal Moore’s collection of firearms.