Ann Widdecombe was slain in her home on Wednesday. A man was arrested Friday, but on Saturday police announced he had been released and is no longer a suspect. File Photo by Vickie Flores/EPA

July 11 (UPI) -- A man arrested in the attack and killing of British former Member of Parliament Ann Widdecombe has been released, and police announced she had been attacked a full day before she was found dead in her home.

"Our murder inquiry is in its early stages but moving at a significant pace. We are deploying all of the necessary resources to find out exactly what has happened," Devon and Cornwall Assistant Chief Constable Matt Longman said.

He said Widdecombe, 78, had been attacked about 24 hours before she was found dead on Thursday. Someone became concerned when she didn't show up for a scheduled TV interview on Wednesday.

On Friday, Longman said police had arrested a white, British man, 26, on suspicion of the attack. On Saturday, they said he's no longer a suspect.