Zac Efron’s suspicious scuffle in Downtown LA’s Skid Row is just the latest of many bizarre incidents for the star. And insiders tell In Touch that after two reported stints in rehab this year, Zac is struggling now more than ever.

An insider shares with In Touch that just four months ago, it was actually a drug binge that led to Zac’s broken jaw.

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Zac’s jaw had to be wired shut after he broke it in November, stating that he slipped in a puddle of water at his Hollywood Hills home. But the insider tells In Touch that he hurt himself during a drug binge. “He even does drugs alone,” the inside source exclusively tells the mag. “It’s sad.”

“Zac came out of rehab and almost instantly started using drugs again,” one of Zac’s friends reveals in the new In Touch, on stands now.

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According to his friends, Zac knows he’s in trouble. “He doesn’t want to be some burnout Disney star, but I just don’t think he’s ready to stop the party,” a second insider tells In Touch. “He needs to get help before it’s too late.”

Check out In Touch’s Noah Levy discussing this story with his co-hosts on The Gossip Table.

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