A pensioner was killed after a fellow care home patient pushed him and broke his back following an argument over a cough, an inquest heard.
Brendan Smyth, 70, suffered a fatal spine fracture after a fight broke out when he told the mentally-ill resident to stopping coughing.
Chelmsford Coroner's Court heard how Mr Smyth could hear the noise from his adjoining room, and told his neighbour to be quiet in the incident on February 10.
After the scuffle, Mr Smyth was taken from Regent House in Clacton-on-Sea, Essex, to Addenbrooke's Hospital in Cambridge where he died three days later.
Brendan Smyth, 70, suffered a fatal spine fracture after a fight broke out when he told the mentally-ill resident to stopping coughing at Regent House in Essex
The 63-year-old was initially arrested on suspicion of murder but the charges were dropped due to both parties' history of mental health.
Dc Mitch McGuire, of Essex Police told the inquest: 'Both residents were living on the same floor and the rooms are quite close together.
'The confrontation took place in the small space between the rooms. Mr Smyth was ranting and shouting and was quite irate.
'He was complaining that there was a lot of noise on his floor. The staff have said this is not his usual behaviour and they had not seen him like that before.
'The other resident had a cold and was coughing. Mr Smyth was quite irate and told him to be quiet.
'The other resident came out of his room when he heard a lot of noise and Mr Smyth took a swipe at him.
'Then he hit him back and Mr Smyth didn't get back up so