mistaken identity. the arrest comes as jazmine's family prepares for her funeral on wednesday. kaley is standing by in houston to let us know about what's happening. what do we know about the arrest versus the person we saw walking versus the composite sketch that was distributed? >> reporter: freddie, over the course of the past week, authorities have been pleading with the public to share any information they could to lead to the capture of jazmine barnes' killer. that's exactly how we got to where we are now. it was a tip from an anonymous source sent by e-mail to the harris county sheriff here. this e-mail incredibly detailed in which eric black jr. and another man were named as being involved in this killing. it's really a case of twofold mistaken identity.