User Score: 2033
The drug used by the unsub, as originally written, was changed to "trilamite" because the network didn't want to advertise the actual drug used to treat seasickness, which is extremely dangerous.
The tool that they had trouble identifying because it left parallel cuts is called pattern shears. It is a type of scissors used to cut paper or velum patterns for stained glass. One side has two parallel blades that the other side presses the paper into as it cuts. This ensures that the pattern pieces are slightly smaller than drawn so there will be space between the glass pieces to fit lead came or copper foil and solder when pieced together. The width between the parallel blades is slightly different depending on the technique being used. (Lead came is thicker so needs more space than copper foil.) His was broken in half and he used the double bladed side, thus the parallel cuts.
In actuality, if Hotch were to attempt his underwater shooting, his gun would jam after the first shot because the mechanism can't cycle properly when fired underwater.
Even worse, the sound of the gunshot would burst his eardrums, and might even cause serious internal injuries. Shockwaves travel much faster in water than air, which increases the damage they cause.
This episode marked the first time that Rachel Nichols presented the ending quotation.
This episode wrapped on March 21, 2011.
Indianapolis Colts Tight End Dallas Clark guest-stars in this episode as San Diego Police Officer Austin Kent. His character was killed in the first script, but Rick Dunkle rewrote the part to make Clark a detective.
"Hanley Waters" is an area in Tampa named for the intersection of Hanley Road and Waters Avenue.
When Garcia is looking up prescriptions that have been filled for Ben Foster, his date of birth is shown on screen as 10-4-2001, which would make the unsub only 9 years old at the time. It is mentioned several times during the episode that the unsub is in his twenties.
As the team closes in on Ben Foster at his home, he is sitting on his bed surrounded by the three 'friends' he sees in his delusions. One of them goes to the window and warns the rest that the police are coming and they needed to run. This is impossible because the delusions cannot act on their own; they can only perform what Ben imagines they are doing. Since he was not aware the police were outside, he could not imagine that one of his delusions looked out the window and saw the police.
Greg Van Dyke transportation coordinator for the series, guest-stars as the bus driver in this episode.
The physical address for Prentiss in Antwerp on the fact sheet should be "Diamantstraat 10" instead of "Diamanstraat 10." There is a bridal shop situated at that address.
Prentiss has been with the BAU for five years, and her character was first introduced in "The Last Word" (originally broadcast on November 15, 2006). In that episode, it was established she had been with the FBI for 10 years. However, in flashbacks, Prentiss is shown both seven and eight years previously working undercover overseas apparently as a CIA agent, which contradicts her character biography that makes her an FBI agent for the past 15 years.
According to her headstone, Emily Prentiss' date of birth was October 12, 1970.
The music played at the end of this episode was "Kolnidur" by Jónsi.
The name of the street in Paris should have been "Rue de l'Université" and not "Rue l'Université." It is also impossible to have that kind of view on the Eiffel Tower from that street.
As Prentiss and Morgan are driving together, a tall palm tree can be seen in the background when they pass a side street. There are no palm trees in the District of Columbia.
The episode title, "Valhalla", is the hall where Norse God Odin would receive souls of slain heroes.
This episode marked the second episode where the closing quotation was presented by a character within the show and not as a voiceover.
This episode marked the first episode where the closing quotation was presented by a character within the show and not as a voiceover.
The song Sammy plays in this episode is called "Brother" by Road Hawgs, which was written specially for this episode.
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high stake situations, Thrillers, long running show, Murder & Mayhem, Detectives