Nigel Wilson who is 42, is known to illegally pilot drones around places such as football stadiums, Buckingham Palace, and other places. He is known to have commit 17 felonies. He is a suspect.
The contents and packaging are still being examined when the article was written.This is what the drone looks like.
The prison is British. It can hold up to 506 guys. “Both the device and the contents of the package are currently being examined, and investigations are on-going to identify the offender. We are working closely with the prison to investigate this incident.” That is someone elses' quote.