He makes allegations on the Internet.

William Balfour, a suspect listed by Amber Alert, made claims about his alleged familial ties to Jennifer Hudson and her young nephew, who Balfour is suspected of abducting.

Balfour, now 27, writes on his MySpace page: "I AM A 26 YEAR OLD, I RESIDE ON THE SOUTH SIDE OF CHICAGO, I HAVE A WIFE HER NAME IS JULIA, AND I ALSO HAVE A 6 YR OLD STEPSON … I MIGHT AS WELL LET YOU ALL KNOW THAT JENNIFER HUDSON IS MY WIFE'S SISTER I'M PROUD OF HER AND WISH HER NOTHING BUT THE BEST IN WHAT SHE DO BUT DON'T HIT ME UP ASKING BOUT HER, OTHER THAN THAT IT'S ON!"

Balfour's mother backs his claims, telling the Associated Press he and Julia Hudson were married for "several years" and later separated. Julia's seven-year-old son is still missing.