Credit: ABC Family

Jason DiLaurentis (Drew Van Acker) remains a pretty little enigma on Pretty Little Liars Season 3. What does Spencer's (Troian Bellisario) brooding half brother want, exactly? A recent tweet from PLL Andy Reaser helps clear up this issue — if you believe him.

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A fan asked Andy to "tell us something about Jason," and Andy obliged, saying, "he wants justice for his sister's killing."

This motivation makes sense with what we've seen of Jason, especially in Season 3, but it still leaves us with a lot of questions. Even assuming that Andy isn't being intentionally misleading, we have to wonder: Is justice for Alison (Sasha Pieterseall Jason wants, or does he have another agenda, too? If justice is all he wants, does that mean he really is a good guy we should trust?

What do you make of this tweet? Let us know in the comments below.

Catch an all-new episode of PLL on Tuesday, July 10 at 8 p.m. ET/PT on ABC Family.

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Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaMartin47