I talked to my brother last night. He and and his wife are taking life one step at a time and are doing ok. He's writing a series of letters to the baby, helping him work through the grieving process.
He told me the story of Mitchell's name, too. He teased my father a few weeks earlier while the kids were visiting, that the baby should be an M name. With all of the M names in our family, he rarely calls us by the right one (Marilyn, Monica, Mariela, Maggie, Mike and Matthew) Maggie came up with the name Mitchell... Brian and Mariela decided they liked the name and planned on calling him Mitchell from that point.