A man believed to have killed his wife and daughter then taken his own life was a doting father who would "go red if you swore in front of him", a family friend said.
Graeme Robson, 45, spoke after attending prayers in Oswestry, Shropshire, for the McFall family.
Susan McFall, 56, and 18-year-old daughter Francesca, known as Frankie, were found dead at their home in Hampton Road, Oswestry, on Friday morning.
The body of Hugh McFall, 48, was found a few hours later at an industrial lock-up he rented in nearby St Martins.
It is thought the flower salesman killed his wife and daughter before taking his own life in what West Mercia Police are calling a "family tragedy".
Speaking outside the town's Parish Church of St Oswald, where special prayers were held ahead of the usual service, Mr Robson dismissed rumours of financial problems that may have driven Mr McFall to kill his family.
He said he went out with Nicola Gillham, Mrs McFall's daughter from a previous marriage, for around three years until they broke up two years ago.
He said: "I lost my mum and my dad moved to Spain so they basically became my family.
"I was close to Sue, Frankie and Hugh. They were like my family for the best part of three years."
He said he had seen Frankie only last week when she had offered to buy him a drink to celebrate his birthday.