this is 24-year-old mohammed sulman ba. police believe he was involved in a shooting just a short distance away from this. police found a man shot in the back of a car. they believe ba was the suspect. he's been charged with attempted murder, first-degree assault and other related charges. >> do they think the shooting was drug-fueled? >> those details haven't come out yet. all they believe is that ba was related to this shooting. they have recovered the weapon that they believe was used in this shooting. that victim is in critical condition. >> it's really unfortunate to see someone go through this, but in essence, he walks himself to police. >> at first it seems sort of funny, you know? here's a guy, a little out of his mind, goofing around, not paying attention to police, but you quickly realize what a dangerous man that police were dealing with. >> right. ♪ >>> that man right there is anthony walker. he believes his brother had been shot and killed. he crosses the police line. the police try to get him under control. a