Conversation so far:
What caused Harold Shipman's death?
Shipman hanged himself in his cell at Wakefield Prison at 06:20 on 13 January 2004, on the eve of his 58th birthday, and was pronounced dead at 08:10.
Why did he hang himself?
Shipman's motive for suicide was never established, although he had reportedly told his probation officer that he was considering suicide to assure his wife's financial security.
Did he do any interviews in prison?
CANNOTANSWER.
Are there any other interesting aspects about this article?
His death divided national newspapers, with the Daily Mirror branding him a "cold coward" and condemning the Prison Service for allowing his suicide to happen.

Question: Why did they feel this way?
Self-contained rewrite: Why did the Daily Mirror feel Harold Shipman was a "cold coward?"