I am a movie director and I just received the following movie plot. Could you help me answer this question? If not, let me know by writing "Not answerable". Plot title: Taken Movie plot: Retired CIA field operative Bryan Mills (Liam Neeson) attempts to build a closer relationship with his daughter, Kim (Maggie Grace), who lives with her mother, Lenore (Famke Janssen), and her wealthy stepfather, Stuart (Xander Berkeley). While overseeing security at a concert for pop star Sheerah (Holly Valance), Bryan saves her from a violent stalker. As a token of gratitude, Sheerah offers to assess Kim's talent as a singer. Before Bryan can tell Kim, she asks her father for permission to travel to Paris with her best friend, Amanda (Katie Cassidy). He initially refuses, but eventually agrees after Lenore pressures him. At the airport, he learns the girls are actually following Irish band U2 during their European tour, something Lenore knew, but kept from him. Upon arriving at Charles de Gaulle International Airport, Kim and Amanda meet a young man named Peter (Nicolas Giraud), whose taxi-sharing habits act as an opportunity to discover and pass on their details and location. Kim and Amanda go to Amanda's cousins' apartment, only for Kim to find that Amanda's cousins are in Spain. While Kim takes a call to her father, she witnesses Amanda being abducted by strange men in the living room. Kim complies with her father's instructions to hide in a bedroom, but Bryan, knowing she will be found, informs her of it and talks her through the situation. After she is dragged out from underneath the bed, Kim yells the description of her abductor until she is silenced. Her abductor picks up the phone and says nothing to Bryan, who demands that he release his daughter and vows to hunt him down and kill him if he does not. The only response is "good luck", after which the call ends. Sam (Leland Orser), an old friend of Bryan and former colleague, deduces from the killer's description and voice that he is Marko Hoxha (Arben Bajraktaraj), a notorious member and leader of illegal Albanian sex trafficking operations. Informing Lenore about their operations, he warns Bryan that Kim will disappear for good if not found within... My question: What is Peter killed by?
Answer:
A truck.