Stabler walks into the squad room and asks Benson, "Did you run him through the system?" Benson replies, " Yeah, there's no priors under the name Judson Tierney but without fingerprints it could be an alias". Stabler, "How about background?" Benson, " yeah he owns a house in Rigo Park free and clear, he opened a locksmiths shop in 1971, he's worked there everyday since he got sick a year ago". Surely she means until he got sick a year ago.
The one-hundred-dollar bills, which the detectives describe as having been mailed "no later than 1970", are, in fact, modern, twenty-first-century one-hundred-dollar bills. The image of Benjamin Franklin was changed between then and now.
Mike Mollinax's rap sheet shows that he was charged with one count of arson in the first degree and two counts of murder in the second degree. However since he killed more than one person in the same criminal act (allegedly), caused the death of a person during the commission of arson in the first degree and killed someone in a cruel and wanton manner (burning a baby alive is tantamount to torture) he should have been charged with two counts of murder in the first degree, as any one of those three things elevates a homicide to murder one. Also in 1972 a man who is convicted of shooting his wife in the back, then burning down his house with his infant daughter still inside, alive, would have been sentenced to death and executed without a doubt, people back then were much less squeamish about imposing the death penalty.
Judson Tierney explains that his friend kills his own girlfriend, and douses the house with gasoline to cover up the crime. Also, he attempts to cover his baby with gasoline as well, before Judson kills him, and raises the child as his own. Later, it is discovered that the husband of the girlfriend went to prison for the murder of her and the baby, as well as arson (to cover up the murders of both. If Judson kills his friend before he can set the house and baby on fire, there's no arson.