The mother of murder victim Laci Peterson is writing a book about her experiences. Sharon Rocha is expected to provide a revealing look at the celebrated Laci Peterson murder case in her book, “For Laci.” The book has been listed on the website of Crown Publishing, a division of Random House. Peterson’s stepfather, Ron Grantski, told the Modesto Bee that he would be helping Rocha write the book. “A lot of truths haven't been told, and I kind of think they should be,” Grantski said. "Everyone has written little bits and pieces. This story is going to be a good...