There's been a number of suspicious reporter deaths with vehicles malfunctions, possibly due to hack (https://encrypted.google.com/search?hl=en&q=suspicious%20rep...).
The most recent high profile one being Michael Hastings(https://en.wikipedia.org/wiki/Michael_Hastings_(journalist)#...)
Could be paranoid nonsense. But white hat researchers have demonstrated a disturbing number of attack vectors that could be used for this sort of thing.