Dr. R steps to the front of the class and introduces the next section: "The second week of Victimology 101, will cover rape and sexual sadism in serial killings. We will explore what type of females are targeted and why, and how the last moments of the victim's life are played out."

"Today we will start with exploring three of the most commonly victimized groups. First, we will begin with preteens. These girls are often involved in crimes of opportunity." A young girl, no older than 12 with brown hair and blue eyes is brought out onto the stage. "A girl like this can be easily snatched on her way home from school or when out with friends." He grabs her by the wrist and pulls her up next to him, gently caressing her long neck as he continues. "Preteen girls are usually weak and easily overpowered. They can also be naive or easily deceived. Many sexual sadists like young girls because even the act of penetration is often a painful experience for them." Dr. R pulls down her pants, pushes her to the ground and kneels between her kicking legs. He procures a large black dildo that he places against her crotch, rubbing slowly for a few seconds before forcing it deep between her labia. She screams as the full length disappears into her cavity. After a few powerful thrusts, he grabs her throat with his free hand and silences her. He pushes the dildo all the way in and leaves it there. Taking her head in both hands, her snaps her neck like a twig.

The young girl's body falls limp, and her face goes blank. Her body twitches from random spasms as he feels back between her legs. His fingers moving along the rim of her anus. Her body still slightly realty to his touch but it is only in the form of uncontrollable reflexes. Urine dribbles out around the dildo and over his hand.

"Some killers find their young female victims especially attractive, while for others they are merely objects for pleasure," Dr. R explains. "These differences are often evidenced by how the body is treated postmortem. If it is disposed of irreverently and is poorly treated, it was likely nothing more than a play toy for the killer, or the killer had something against her. However, if the corpse is posed or treated respectfully, there was something personal or appealing about her to the killer." As Dr. R speaks, he pulls the sex toy from between her legs, leaving behind trickles of blood dripping onto the floor.

"The next group is the high school girl." A tall, blonde teenager, probably 16, with D cup breasts and wide hips in a schoolgirl uniform makes her way onto the stage. "Adolescents are usually chosen for their sexually maturity and untouched bodies; or like before, because they provide excellent opportunities. Often dressing provocatively, high school girls are objects of lust for many killers. Because they have more sexually developed bodies, these girls can actually find pleasure in a rape if performed correctly, and even if they don't, they provide a more sexually satisfying experience." He begins by ripping the front of the girl's shirt open to expose her breasts supported by a pink lace bra. Then, he binds her hands behind her back, and leans her face foreword over a table. He pulls her skirt up, exposing her panties, which he pulls down to her knees. "Arousal can be achieved in numerous ways including stimulation of the vulva," He talks as he rubs the gap between her legs, "Or by endorphins released when the body experiences pain." He now takes a short whip and strikes her across the legs and ass, leaving red welts. The girl is now sobbing loudly, and he feels inside her. "Still not as wet as she could be, but it should do." The same dildo is shoved into this girl. He rubs her ass and fondles her breasts as he picks up the rhythm. She squeaks and moans, obviously not enjoying it, but she also doesn't appear to be the same pain that the first girl experienced. "Because her body naturally reacts better to sexual stimulation, it is less painful for her." As he continues, she begins relaxing and letting it happen.

"Girls this age will often end up going along with a rape out of fear and a hope that if they cooperate, the rapist won't kill them." He notes her vacant expressionless eyes. "Right now, she appears to be in shock. Her mind will go blank as she tries to distance herself from reality. For the sake of time, we'll end her here. Don't worry though," He pulls out a knife and pushes her down on her knees still facing away from him, "I'll make it interesting." He slides the knife deep through her throat, triggering a jet of crimson. He lets he go and steps away. For a moment she stays kneeling and her legs slowly spreading wider. She is clutching at her throat, blood running over her chest and a mix of urine and wet running down the inside of her thighs. A few seconds later, she falls back and lies convulsing on the ground before making a choking sound and falling still. Her noises taper off to silence, and the doctor moves on.

"Finally for today is the college age girl. These girls often are raped and killed by men they encounter at parties or while out in bars or clubs. They are especially vulnerable if they are drinking heavily and it is not uncommon for them to be drugged before being taken advantage of. Often, however, serial killers may wait for them to regain their senses, because feeling the girl's struggles and seeing her fear are usually an important part of the experience for them."

I recognize the girl they wheel out, tied down by her wrists on a four poster bed, as Brianna Yates. A teacher's pet who always sits in the front row a few seats over from me.

Her thin, toned body is wiggling and trying with all its effort to get free. Her chest is heaving, and she whimpers behind her gag. Dr. R climbs on top and gets between her legs, pushing up her skirt. "This will be out last girl for the day, so if you don't mind, I will make it more realistic." We can see him unbutton his pants, pull out his cock and force it into her. Her noises shift from moans of fear to cries of pain as he roughly rapes the girl, holding her hips tightly. As he continues she begins quieting down, and he turns his head sideways to the class. "Intimate, quick, and quiet, asphyxiation is one of the most common ways to end a girl's life." He continues fucking the girl while beginning to strangle her. Her legs spread wider and he slips further in with each thrust. "Note how strangulation actually adds to her sexual pleasure, while adding to the killer's sexual sadistic pleasure." Her legs begin kicking with all her waning strength. Eyes widen and she begins visibly shaking as she reaches out to to him; her lungs are obviously begging to air. "You could almost say it's a win win," He laughs.

He absentmindedly runs his hands over the girl's body as he talks. "There's something about sealing off the girl's throat as she begs for her finals breaths. Feeling the blood from the last beat of her struggling heart pulse through her neck for a final time. Watching the emotions in her eyes: the terror, pain, and sadness. Being inside her as her body goes limp and the life drains from her, leaving the empty corpse behind. It makes your heart race. It makes you feel alive."

The girl's arms fall to her sides, and her legs lay spread wide and not kicking. His muscles flex as he squeezes her neck as tight as he can for one last moment, pushing as deep as possible into the girl.

He pulls out of the corpse, and rebuttons his pants. He dismisses the class and leaves the bodies to be collected by whomever will have them. I quickly grab the high schooler. "This will be fun." I think to myself.