Hayden Panetierre looked gorgeous and smiled big hosting last night's Whaleman Foundation Benefit at Eva Longoria's Beso, but the night took a turn for the dramatic for her family soon after she ducked out of the party with her boyfriend Milo Ventimiglia. Just a few hours after all being at the soiree together, Hayden's father was arrested for domestic violence. Alan Panettiere allegedly became upset and struck Hayden's mom Lesley in the face when he thought she "disrespected" him with her behavior at the party. So scary and sad for the whole family.

To see more from the party including Hayden and her mom, Milo, Eva, Isabel Lucas, and Tony Parker just read more.

Images include: Eva Longoria, Hayden Panettiere, Isabel Lucas, Milo Ventimiglia, Tony Parker

Source, Source and Bauer-Griffin Online