Natalie Wood and Robert Wagner's Love Story in Pictures

Natalie Wood's 1981 drowning left a massive gap in the lives of husband Robert Wagner and her daughters Natasha and Courtney. Here, a look back at the life they made together. For more, check out the latest issue of PEOPLE, on newsstands Friday

NEVER THE SAME

"Before my mom died, my dad was a happy-go-lucky person and the life of the party," Gregson says. "After she died, there was a heaviness and a sadness to him that hadn't been there before."