Given the question: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: How does Stevens die? Title: Miami Vice Movie plot: While working an undercover prostitute sting operation in a nightclub to arrest a pimp named Neptune, Miami-Dade Police detectives James "Sonny" Crockett and Ricardo "Rico" Tubbs receive a frantic phone call from their former informant Alonzo Stevens (John Hawkes). Stevens reveals that he's leaving town, and, believing his wife Leonetta to be in immediate danger, asks Rico to check on her. Crockett learns that Stevens was working as an informant for the FBI but has been compromised. Crockett and Tubbs quickly contact FBI Special Agent in Charge John Fujima (Ciaran Hinds) and warn him about Stevens' safety. Tracking down Stevens through a vehicle transponder and aerial surveillance, Crockett and Tubbs stop him along I-95. Stevens reveals that a Colombian cartel had become aware that Russian undercovers (now dead) were working with the FBI, and had threatened to murder Leonetta via a C-4 necklace bomb if he didn't confess. Rico, learning of Leonetta's death by telephone call, tells Alonzo that he doesn't have to go home. Hearing this, the grief-stricken Stevens commits suicide by walking in front of an oncoming semi truck. En route to the murder scene, Sonny and Rico receive a call from Lt. Castillo (Barry Shabaka Henley) and are instructed to stay away. He tells them to meet him downtown, where they are introduced in person to John Fujima, head of the Florida Joint Inter-Agency Task Force between the FBI, the DEA, and ICE. Crockett and Tubbs berate Fujima for the errors committed and inquire as to why the MPD wasn't involved. Fujima reveals that the Colombian group is highly sophisticated and run by Jose Yero (John Ortiz), initially thought to be the cartel's leader. Fujima enlists Crockett and Tubbs, making them Organized Crime Drug Enforcement Task Force deputies, to help, and they continue the investigation by looking into go-fast boats coming from the Caribbean, delivering loads of narcotics from the Colombians. They then use their Miami informant contacts to set up a meet and greet with the...
The answer is:
He commits suicide by stepping in front of a semi truck.