Michael Jackson Michael Jackson

Like so many things in Michael Jackson's life, the questions about his estate and custody of his children have become complicated and mysterious — and no one, not even his family, knows what to believe.

As his parents sought control of his estate, The Wall Street Journal reported Tuesday that Jackson's most recent will, written in 2002, divided his estate between his mother, three children and charities, apparently cutting out Joseph Jackson, the father with whom he had a strained and tumultuous relationship.

See Jackson's influence

TMZ reported that Jackson was not the biological father of any of his three children, while Us Weekly claimed the father of his two older children was Los Angeles dermatologist Arnold Klein. The site also said police sought to speak with Klein about any drugs he may have prescribed to Jackson, but a police spokeswoman declined to comment on the report to TVGuide.com.

Michael Joseph Jackson Jr., known as Prince Michael, 12; and Paris Michael Katherine Jackson, 11, were born to Deborah Rowe, Jackson's ex-wife, who worked for Klein as a nurse. Jackson's third child, Prince Michael II, 7, was born to a surrogate mother.

Look back on Jackson's career

Watch Jackson with The Jackson 5