CSI: Crime Scene Investigation - Season 8 - Eps 15: The Theory of Everything
A deer is illegally killed, and the person found with the body in the back of his truck apparently dressed it in a tutu. The man, who was completely drunk when arrested, was being interrogated by Nick and Brass, and suddently tries to escape and is pepper sprayed. Unfazed by the spray, officers then taser him and he bursts into flames and dies. Meanwhile an unbalanced woman wearing a tinfoil outfit at the front desk tries to warn people (including Nick) of an alien invasion. After observing the burning man, she later turns up dead with green-tinted blood. When other people turn up with the same problem, it's up to the team to figure out why. Meanwhile, an old couple dies, apparently in their sleep... but there is evidence the cases are related.
About CSI: Crime Scene Investigation

Title: CSI: Crime Scene Investigation
First Air Date: 2000-10-06
Last Air Date: 2015-02-15
Status: Ended
Rating: 7.636/10 (from 1303 votes)
Language: EN
Seasons: 16
Total Episodes: 335
Network: CBS
Genres: Crime, Drama, Mystery
Production Companies: Alliance Atlantis, CBS Productions, CBS Studios
Synopsis
A Las Vegas team of forensic investigators are trained to solve criminal cases by scouring the crime scene, collecting irrefutable evidence and finding the missing pieces that solve the mystery.
Cast

Ted Danson
D.B. Russell

George Eads
Nick Stokes

Jorja Fox
Sara Sidle

Eric Szmanda
Greg Sanders

Robert David Hall
Al Robbins

Wallace Langham
David Hodges

Jon Wellner
Henry Andrews

Elisabeth Harnois
Morgan Brody

Elisabeth Shue
Julie Finlay

David Berman
David Phillips