• I'm sorry for your loss.
• Tell me how you are feeling.
• Were you there when (name) died?  What was that like for you?
• Tell me about (name), and your life with him/her.
• What special memories do you cherish?

Keep in mind that you don't have to say anything.  Sometimes just your presence can be just as comforting as verbal communication.  Touching the bereaved on the hand, arm, shoulder or back is also acceptable, when appropriate, and shows them you care.  Don't be afraid to cry with the bereaved, that to shows your compassion.

Do be careful to about what you say.  There are certain clichés and phrases that should be avoided, and may not be true or appropriate.  These include:

• I know just how you feel.
• Her/His death was for the best.
• It was God's will.  He never gives us more than we can handle.
• Things will get better.
• Time heals all wounds.
• Now you have an angel in heaven watching over you.