Confusing end - what do you think? ***SPOILERS***
I know Pacu says at the end "now you know my story...", but does that necessarily mean that HE was killed? Remember, Clara had left the area only a few minutes before him. Also, the mother didn't know Clara was at their home, so when she heard the shot and saw Tonio walking back, she immediately assumed the "kid" was killed.
When Tonio saw the body, he smiled - WHY? Maybe it was the girl and he was glad to have found love and relieved it wasn't his brother that was killed. Also, I think Pacu thought Tonio was dead when he found him sleeping and decided to leave their land because he didn't want to avenge Tonio's death.
When Tonio walks to the ocean - nobody is there waiting for him. This is why I think Clara was killed instead.
What was your interpretation of the ending?