Complex sentence: Goldberg attended No Way Out as a fan, confronting Lesnar at the event and, after several insults by Lesnar, entered the ring and hit a spear on Lesnar, before being detained and escorted out of the arena by security guards.
Split into simpler sentences: Goldberg attended No Way Out as a fan, confronting Lesnar at the event and, after several insults by Lesnar, entered the ring and speared Lesnar. Goldberg was then detained and escorted out of the arena by security guards.