Read it through once

“Oh, I have my hand upon him. He and the two mates, are as I learn, the only native-born Americans in the ship. The others are Finns and Germans. I know, also, that they were all three away from the ship last night. I had it from the stevedore who has been loading their cargo. By the time that their sailing-ship reaches Savannah the mail-boat will have carried this letter, and the cable will have informed the police of Savannah that these three gentlemen are badly wanted here upon a charge of murder.”