She 'went into mourning' for her dead husband. [=she began to mourn for her dead husband]
She is still 'mourning' her husband, who died last year.
She is still 'in mourning' for her dead husband.
(..) - Tell me what you want. Do you have jumper cables? My uncle?s car is old and..... - No we don't any jumper cables . And have some respect, zipper head, we?re mourning here.. How you holding up, Walt? Mr. Kowalski. Huh? - Mr. Kowalski, that's my name. Right, Mr. Kowalski. (..)2008 Gran Torino