Maybe. But he was married to the mother at the time.
Not sure what is worse. That the author had such a nasty preconceived notion, or that he was to lazy to take ten seconds to research something so basic.
Supposedly a DNA test was ordered by Katherine Jackson and her lawyers after Michael died. The results of the test are secret, but Paris was allowed to reconnected with Deb Rowe, her biological mother. The whole situation is a complete mess.