and with delivery. >>> my name is harry campbell and i'm the founder of "the rideshare guy." it's a blog, podcast, and youtube channel for uber and lyft drivers. i've heard a lot of stories from people out on the road, but never anything as crazy as what jason dalton told the police. >> is uber u-b-e-r? >> mm-hmm. >> so you just recently joined up with them? >> yeah. am i okay to talk about what happened? >> yeah. >> obviously, the goal of these detectives is to get to motivation. what drove jason dalton to commit these crimes? >> the one thing no one in this entire country will ever forget is a killer who says he was motivated by uber. >> i know you guys are going to have a hard time believing this, but it literally took over mind and body. >> the uber app? >> yes. >> it made no sense to anyone that the uber app would take over him and force him to go on this shooting spree.