Any advice

Yesterday my husband lost his cousin to a 4 car accident . My husband hides his feelings pretty well and I tried to comfort him but he holds things in . I don’t know what else to do since I’ve never comforted anyone in a situation like this . I remember when I lost my grandma who was my whole world , all I wanted was to be alone and didn’t want to see or talk to anyone so I know how he feels but don’t know if I should give him space or smother him in love . I don’t want to overwhelm him either . ):