I – along with most of the country – have been obsessed with Serial. If you haven’t heard, its a NPR podcast based on a homicide case in Baltimore from 1999. It draws you in fast and never really lets up. Check it out if you haven’t already. There’s even a Reddit site dedicated to the podcast. Some people have done some quite amazing maps/animations cross-referencing the cell tower data vs call logs vs timelines.
Also pimping my current podcasting app of choice here: Overcast. iOS only tho.