all three defendants are charged with arson with intent or being reckless as to whether life was endangered.
The charges are, of course, written in legalese. The particulars of the alleged offence are that on 25/2/18, at 253 Hinckley Road, Leicester, they attempted to commit arson, in that without lawful excuse they attempted to destroy by fire 253 Hinckley Road, of a value unknown, belonging to Hardeep Singh, intending to destroy or damage property, or being reckless as to whether it would be destroyed or damaged and intending, by the destruction, to endanger the life of another, or by being reckless as to whether the life of a person would thereby be endangered.
https://www.leicestermercury.co.uk/news/leicester-news/leicester-explosion-court-1296837