Murders weren't usually Shadow's thing but he guessed G.U.N was running low on available agents so he didn't have much choice. His job was to follow a lead they had in the case of these apparent murders, this 'lead' had sent him to some kind of abandoned warehouse where the last victim was found and he was to investigate- that was until he was sure he spotted a girl on the premises.
It was a pretty dank place, so he couldn't imagine why a young girl would want to come here - of course - he didn't expect anything from some girl either, he was just hoping to find her and to get her out of here, since this wasn't exactly the kind of place she needed to be hanging around.
And as luck would have it, he was pretty sure he spotted her. "Hey, you there!" he called, sprinting over to the teenager.