It is always nice to send food for the family. Great idea. Since I don't know anything about this family, I am guessing here.
Other good ideas are to remember to maybe help out with other children. Take them along with your family to give the parents some time to regroup. Maybe offering to help clean up around the house. Cutting the grass, walking the dog. Anything that will give them time to adjust to the shock they have been through. Picking up some things from the grocery store, something no one else may think of, like paper towels or tissue. If you are close enough with either of them then suggest maybe a day out to lunch or a short shopping trip. It doesn't have to be a major thing. Just a way to get them or her out of the house for a short amount of time.
Also Holidays are coming up, that is a rough time for newly bereaved parents. Try to included them in some small way. Just because their child is gone doesn't mean they have forgotten all the memories they have of the holidays with their child. I hope I have helped in some way.
