North London
The dead man and woman were known to each other, police have confirmed.
"I opened the balcony door and saw this river flowing down the road," one resident of Queens Drive, Finsbury Park said.
Michelle was killed more than 10 years ago in north London.
Police have urged anyone with information to get in touch.
A 15-year-old boy was also taken to hospital after being stabbed in a separate incident.
Reiss, Ralston and Ricky Gabriel smirked as they were jailed at Blackfriars Crown Court.
Dorothy Woolmer was found dead on Sunday morning.
The latest incident, in Wedmore St in Archway, follows a spate of shootings in the capital over the last few weeks.
Both men are in hospital.
The fire raged through the night, with firefighters called to the unit just after midnight on Thursday.