California shootings suspect Elliot Rodger posted a chilling video on YouTube warning of "the day of retribution" before seven people were killed in a gun attack.
In the almost seven-minute video, posted on Friday, Rodger warned of "the day in which I will have my revenge against humanity" after what he called of "an existence of loneliness, rejection and unfulfilled desires".
The above is a short clip from the start of the video.
More top news
The 10K and half-marathon races take place almost exactly a year after Salman Abedi killed 22 in his attack at an Ariana Grande concert.
Dmitrios Pagourtzis also had several kinds of homemade explosive devices but they were not capable of detonating, county officials said.
After early mist clears, most parts of England and Wales will have another fine, warm day with plenty of sunshine.