Aggravated Robbery

Why would anyone rob someone at gunpoint for a piece of jewelry? I don't get people. We had this happen a few days ago in broad daylight at a busy shopping area. The guys got away for the time being, but guess what...they are now behind bars. We found the first guy a few hours later and the second the next day. All for about $600. Now they are looking at 10-20. Even if they weren't...I hate people that steal, especially by force. Who do they think they are? I think that is my biggest pet peeve. Thieves. Hope they get the max, punks.