Definitely not. 'Pumped Up Kicks' is a creative work and not drawn from real events. The lyrics and the overall concept are products of the songwriter's imagination.
'Pumped Up Kicks' isn't based on a true story. It's more of a creative expression by the songwriter, not drawing from actual events or people's experiences.
Basically, 'Pumped Up Kicks' explores the mindset of a lonely and potentially dangerous teenager. It highlights the inner turmoil and isolation some young people might experience, but it's wrapped up in a memorable melody.
I'm not sure who is involved as the name is quite general. It could be ordinary people who found themselves in an extraordinary situation that made them super pumped.