Here is evidence of an early interview with Brian Healy
https://www.theguardian.com/uk/2007/may/05/world.topstories31:
"Guardian Today: the headlines, the analysis, the debate - sent direct to you
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Mark Warner, the holiday firm which runs the luxury resort, claimed last night there was no sign of a break in at the ground floor apartment overlooking the sea. But Brian Healy, Madeleine's maternal grandfather, told the Guardian his son-in-law had phoned him shortly after returning to the apartment from a nearby restaurant to find Madeleine had disappeared.
"Gerry told me when they went back the shutters to the room were broken, they were jemmied up and she was gone," said Mr Healy. "She'd been taken from the chalet. The door was open."
Mr Healy flew to Portugal yesterday to lend support to his daughter Kate, 39, who is a Leicester GP, and son-in-law Gerry, 38, a consultant cardiologist at the city's Glenfield Hospital. He denied suggestions that the couple had simply left their three children alone while they ate in a restaurant.
"It is not right to say that they just left them," said Mr Healy. "They could see the chalet from where they were sitting in the restaurant, they were a hundred yards away. They went back every half hour to check on the children. When they returned at the end of their meal she was gone. My daughter can hardly speak. She is distraught, she is crying and in shock.""
On Google search results it says "Gonçalo Amaral, Fact of the Fiction: Reflections on That Court Ruling
amaralfiction.blogspot.com/2010/10/reflections-on-that-court-ruling.html
Calpol is mentioned in the file. Both Gerry and Kate told the PJ frankly that they had it with them on that holiday, but didn't use it. Amaral says that Kate's father, Brian Healy, confirmed that the McCanns gave Madeleine Calpol as a sedative. Brian Healy did no such thing. A Sun reporter interviewing Mr Healy added words of ..."
But the link is to a blog where you have to be invited to join and read.