a train rider confirmed that operator of the second train apparently did his best to brake the train manually. (source: http://roll.sohu.com/20110724/n314348071.shtml). according to a microblog, the operator was found in the badly deformed cockpit, impaled by the brake lever. (source: http://weibo.com/michaelwangsg)
from official xinhua news: another train, D3212 was struck by lightning a mere 5km away from the derail site under discussion here (the two trains involved are d3115/d301). d3212 lost power and stopped, too.