David Amess is dead 29 weeks after his birthday.
London = 29
Stabbing = 29

Keep in mind ‘stabbing’ and ‘London’ go together as well.
London = 74
Stabbing = 74
Killing = 74
*Ides of March on 74th day of year

Notice he became a politician in ’83, 38 years ago.
Murder = 38 / 83

His birthday is 26/3.
263, 56th prime
Society of Jesus = 56

*It happened on 259th Street.
Roman Catholicism = 259