Dashcam footage from the vehicle behind shows Ziering, 59, jumping out of car and violently shoving a biker out of the way after around eight gang members surrounded his $100,000 Mercedes.
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Ian Ziering is the latest "Beverly Hills 90210" alum to face a a tragedy after being attacked by bikers. The cast has also faced illness, a horrific car accident, and the death of co-star Luke Perry.
Former "Beverly Hills, 90210" star Brian Austin Green showed support for Ian Ziering after Ziering's physical confrontation with bikers on New Year's Eve.