Complex sentence: Bianchi died from his injuries on 17 July 2015, aged 25, becoming the first Formula One driver to be killed due to injuries sustained during a race since Ayrton Senna's death following his accident at the 1994 San Marino Grand Prix.
Split into simpler sentences: Bianchi died from his injuries on 17 July 2015, aged 25. Bianchi became the first Formula One driver to be killed due to injuries sustained during a race since Ayrton Senna's death following his accident at the 1994 San Marino Grand Prix.