William Jones had been looking for his former girlfriend and her new partner when he kicked the door of Mr Lewis' flat in Claude Road, in the Roath area of Cardiff, in the early hours of 28 April 2012.
Mr Lewis came to the front door and was stabbed, later dying of his injuries in hospital. The pensioner had a learning difficulty and a number of physical impairments, including blindness in one eye and arthritis.
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Councils have until today to say if they plan to merge. Minister Leighton Andrews says joining together will create 'significant savings.'
Mainly cloudy, with a little patchy, light rain in the southeast this afternoon. Some brighter spells in the west at times.
A largely dry, cloudy and mild night with fog patches mainly confined to higher ground. Blustery along the coast.