You will have to include more information than just that he was killed on Leyte in Jan 1945.
You need to provide his name. Was he returned to the states for burial or is he buried in the Philippines? If he was buried in the Philippines then go to ABMC on the net and click on the WWII section. Enter his name and it will show where he is buried, what his outfit was, service number, what state he entered from.
Perhaps with a bit more information someone can help you.