 Why did Moynihan shoot Stanley?
Without looking up, he said: "Have you spotted him?" Jaro Moynahan wiped the sweat from his forehead with a fine duraweb handkerchief. Jaro Moynahan refilled their empty glasses. If the girl had been abducted, only Mercurians could have engineered it in the dark; and the Mercurians were a clannish lot. Jaro Moynahan In the East a sullen red glow stained the heavens like the reflection of a fire. Once back in his room, Jaro Moynahan stripped off his clothes, unbuckled a shoulder holster containing a compressed air slug gun, stepped under the shower. "No. Karfial Hodes' men abducted her."
 Stanley tried to poison him.
 It was an accident.  Stanley tried to poison him.  Stanley was protecting Albert Peet.  He was hired to shoot Stanley.