The British TV presenter and former tabloid editor Piers Morgan has been deluged with offers after asking on Twitter where he should go if he is deported from the US.
A petition on the White House website, which calls for Mr Morgan to be deported because of comments he made about US gun laws, has gathered almost 80,000 signatures.
More top news
The memorial service will be attended by Prince Harry and Meghan Markle.
David Browning admits manslaughter by diminished responsibility but denies murder.
Four people have died and the suspect is still at large, police said.