It didn't have anything to do with JLo. He knocked up a waitress he was having an affair with, she sued him for paternity, and his wife filed for divorce and kicked him out. He sent his blood through the mail and it didn't match the baby's, but the waitress girl is disputing it and trying to make him give it in person.
http://www.kansas.com/mld/kansas/new...on/7858292.htm