|Pathology||Accomplice to proxy rape|
|Family||Ralph Priatti (brother)|
|First Appearance||Traumatic Wound|
Louis Priatti is a US army solider who filmed a student named Gabby Shaw while she was being gang raped at a concert.
After coming home from the war, Louis is told by his younger brother, Ralph Priatti, that a fellow student of his named Alex Peters is going to pay him five-hundred dollars to prank Gabby Shaw by pulling her top down at a rock concert and they ask him to videotape Shaw when Ralph pulled her shirt down and he agrees because he wanted to help his brother make money. The night of the concert Priatti films Shaw while she was dancing with Jake Swenders and when his brother pulls her shirt down and pushes her into the crowd of drunk and aggressive men she is viciously gang raped by the crowd, which Louis Priatti also catches on video. After the concert Louis Priatti gave the video of Shaw's gang assault to Peters, Britt Yardley and Swenders who then upload the video on the website of there boarding school to further humiliate Shaw. As a result half the school knew what Peters and his friends did to Shaw but none of them revealed it to the detectives.
Later on when Nick Amaro and Odafin Tutuola question Louis Priatti about what happened at the concert he claimed that he was't there but when the detectives show a picture of him and his brother leaving the concert he eventually confess. He tried to claim that he did't know Shaw was going to be gang raped and says that he was only following orders but Amaro berates him by telling him that the soldiers he worked with knew the difference between right and wrong and would have tried to stop what happened to Shaw. Louis Priatti then reveals what they did with the video and when the detectives find it and use it as evidence, Peters, Yardley, and Swenders plea guilty to conspiracy to commit the aggravated sexual assault of Gabby. (SVU: "Traumatic Wound")