Damaging MJ Testimony

In graphic testimony during today's Jackson trial, a former security guard testified that he saw MJ and the 1993 accuser in the jacuzzi together at Neverland. He claims to have seen him put the boy's penis in his mouth, suck the boy's nipples, and passionately kiss the boy.
So, do we believe him or not?

UPDATE: Adrian McManus, another former MJ employee, testified today that four boys routinely slept in Jackson's bed, including Macaulay Culkin and Brit-Brit choreographer, Wade Robson. She claims to have seen MJ kiss Culkin on the cheek while touching his leg or rear. She also saw Macaulay dump an entire soda and popcorn on Jackson's head from a theater balcony. Because God knows he deserved it.