We can leave them and let them die, said Thorn.
( ( We ( can ( ( ( leave them ) and ) ( let ( them die ) ) ) ) ) ( , ( ( said Thorn ) . ) ) )
(ROOT (SINV (S (NP (PRP We)) (VP (MD can) (VP (VP (VB leave) (NP (PRP them))) (CC and) (VP (VB let) (S (NP (PRP them)) (VP (VB die))))))) (, ,) (VP (VBD said)) (NP (NNP Thorn)) (. .)))
Thorn told us we could leave them to die. 
( Thorn ( ( ( told us ) ( we ( could ( leave ( them ( to die ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Thorn)) (VP (VBD told) (NP (PRP us)) (SBAR (S (NP (PRP we)) (VP (MD could) (VP (VB leave) (S (NP (PRP them)) (VP (TO to) (VP (VB die))))))))) (. .)))