Gwent Police have released a photo of Carl Mills in custody after his arrest.
The CPS have issued images of the scene after firefighters extinguished the blaze at the Buckley's home in Tillsland, Coed Eva, Cwmbran.
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Conner Marshall, 18, died after a 'vicious and unprovoked attack' in Porthcawl in 2015.
A new campaign is being launched to tackle arson in Wrexham following a number of attacks in the area.
ITV Wales can reveal thousands of patients have waited over an hour for an ambulance since the 'amber' category was introduced last year