Seven-year-old Conley Thompson died when he slipped into a plastic pipe on a building site, his grandmother has said.
The body of Conley was found on a building site in Worsbrough, near Barnsley, this morning after he went missing on Sunday night.
Grandmother Deborah Fraser went to the site to pay tribute to Conley and said she was "shellshocked" by his death.
She said: "As a person he was a lovely little lad, boisterous, got into anything and everything but his smile could light up a room.
"It's not even sunken in now that he's gone. I'm stood next to the place where he died and I'm thinking 'what the hell were you doing Conley in a place like this?'
Speaking about how Conley got trapped in the pipe, she said: "He slipped. You know it was raining, he slipped and went straight down. I hate to think what his little mind was going through.
"His brain must have been all over the place trying to get out."