An 18-year-old man has been arrested on suspicion of murdering Leonne Weeks, 16, who was found dead on a path in Rotherham.
Barnet Flat Fire: Man Killed Before Flat Set Alight
Met Police have launched a murder investigation.
49-year-old Antonio Tommasso was found dead on Thursday after his New Barnet flat was set on fire.
Police believe the suspect or suspects came back to the flat two to three days later and set fire to the property.
They found a red petrol can at the flat.
Met Police are asking any witnesses or anyone with any information to call the incident room on 020 8345 3985 or Crimestoppers anonymously on 0800 555 111.
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