7月13日，伦敦警察表示7日的伦敦恐怖袭击案的侦破工作已取得重要进展，目前已掌握四名炸弹攻击嫌疑人在爆炸发生前20分钟抵达伦敦某火车站的录像，其中有三人来自英格兰北部西约克郡，具有巴基斯坦血统。外电报道如下：New evidence suggests four suicide bombers¹, including at least three Britons of Pakistani descent, carried out the terror attacks in London, officials said Tuesday. Surveillance cameras captured the men as they arrived in the capital just 20 minutes before the explosions began.

Police raided six homes in Leeds searching for explosives and computer files that would shed more light on what were believed to be the first suicide bombings in Western Europe. They arrested a man, identified by the British news agency Press Association as a relative of one of the suspected bombers.

Shed/cast/throw light on sth.表示“使某事清楚地显示出来”，如：Recent research has shed new light on the causes of the disease.（最近的研究结果对该病的病因已有了新的了解。）此外，shed有“流出；落下；倾注；散发；摆脱；遮蔽”等多种含义，如：shed tears（流泪）；shed warmth and light（发出热和光）；shed blood like water（血流成河）；The trees began shedding their leaves.（树木开始落叶。）