Michelle McNamara, wife of actor-comedian Patton Oswalt, has died at the age of 46, according to Oswalt’s publicist. No cause has been disclosed.

McNamara was a crime writer best known for her website TrueCrimeDiary where she covered and discussed both breaking news and cold cases.

McNamara, who graduated from Notre Dame and received a master’s in creative writing from the University of Minnesota, said in an interview from 2007 that she started the website for fun.

“I wanted to get more involved in the cases that were fueling my own curiosity,” she said.

She was more interested in the cases that didn’t reach the public eye.

“I think what’s interesting about them is there’s more stuff to be unearthed that hasn’t been in the public yet and you can do it,” she said.

McNamara married the “Agents of S.H.I.E.L.D” actor in 2005. Oswalt has also starred in “Veep,” “The King of Queens,” “Magnolia,” ”Starsky & Hutch” and voiced the rat chef Remy in “Ratatouille.”

McNamara is survived by her husband and her 7-year-old daughter.