Plot hole: At first the victim (Careful Lionel) is described as not returning to pick up his new shirt in November 1958, and possessing love letters dated from 1957 through early winter (November) 1958. Booth reports the fallout shelter where Lionel's body was discovered was sealed in 1958. Later Lionel is described as reported missing by his boss in January 1960, and the illegitimate child he fathered was born in 1960 as well. That would mean his boss didn't notice he was gone for over a year, and his pregnant girlfriend was with child for at least 14 months.
Plot hole: The surgical instrument that killed 'Susan' was the same one used on her jaw during her plastic surgery. 'Leslie" would not have been able to get the instrument to use to murder her and then put it back in the case, since it was still in the office in the case when Bones and Booth came to get it.