Patton Oswalt Shares Emotional Photo to Mark Completion of Late Wife's Book

"You did it, baby," the comedian wrote.

Patton Oswalt on Tuesday morning shared an emotional picture via social media to celebrate the completion of his late wife's true crime book.

Michelle McNamara died in her sleep on April 21, 2016. The author and mother of one, who ran the cold-case website True Crime Diary, had been working on a large true crime book, I’ll Be Gone in the Dark, at time of her passing. 

Following her death, Oswalt swore he would finish the book for her. 

On Tuesday, he announced it was complete and published. 

"You did it, baby," Oswalt wrote on Twitter. "The book is excellent, the writing brilliant. You tried to bring kindness to chaos, which was your way. #IllBeGoneInTheDark #MichelleMcNamara." 

I’ll Be Gone in the Dark tells the story of the Golden State Killer, aka the Original Night Stalker, who committed at least 50 sexual assaults in Northern California and 12 murders in SoCal from 1976 to 1986. 

Oswalt has since remarried, to Meredith Salenger.