Jennifer Aniston's Secret Half Brother: His Wild Punk Lifestyle Exposed

Unlike his 43-year-old half-sister who lives a luxurious and very public lifestyle, Alex — who goes by AJ — splits his time between Santa Cruz, Calif. as a "boho surfer" and northern Alaska.

"He had a mattress in the back of his van, always had the same pair of pants with 20 patches on it and only had three shirts," Samantha Robles, a body piercer at Chimera Tattoo Studio, told New Idea.

"He just hung out in his van on the beach, and would come in all sandy."

Samantha's boyfriend told the mag, "Santa Cruz has a large population of transient punk kids, usually traveling north. When I talked to AJ last, him and his girlfriend were doing something in Alaska, like farming. I think her family had land up there."

Although Jennifer has never spoken of AJ, he did attend the Along Came Polly premiere in 2004 with his parents.

And AJ's efforts to keep his half-sister's identity a secret wasn't well-kept in his Santa Cruz neighborhood.

"I figured out who he was when one day I saw the dad turn up. I had friends out back and AJ and John were going through the garbage can," his former neighbor Rich Koslowski said. "I talked to them briefly."

His former landlord, Ken Simpkins, said AJ's parents were close to their son and helped him find an apartment: "His parents were involved in finding the unit and had been up a couple of weekends looking for places."