A college A-level student hanged himself two days after his family home was damaged during a party celebrating his 17th birthday, an inquest heard.
Luke Taylor's mother returned home from the cinema to find the property in a mess after he was allowed to have 20 friends round for a party.
The 16-year-old offered to pay for damage to a ceiling and helped clear up when his mum spoke to him the following morning, the inquest heard.
But 24 hours later and just a day before his birthday Luke was found dead outside his bedroom when his grandmother arrived at the house to drop off a birthday badge.
Police spoke to friends who attended the party on May 5 and examined Luke's mobile phone and social media accounts but found no issues relating as to why he would take his own life.
A coroner told the inquest she could not be sure he intended to kill himself.
Luke, a Year 12 pupil studying history, business and economics at Cheadle sixth form college in Stockport, Greater Manchester, had been due to to sit his mocks exams and was predicted to get B grades.
Staff at the 800-student college described the Stockport County football fan as a "polite, quiet young man who was popular with his peers and never seen without a smile on his face".
His mother Caroline, a hospital worker, told the Stockport hearing: "It was soon to be Luke's 17th birthday so we let him have a party on Sunday with some friends.
"When the party was on, we went to the cinema to get out of the way but we got home at 10.15pm and the house was a bit of a mess.
"Luke has obviously had quite a good time and he was in bed but I wasn't very happy about the state of the house.
"I had a conversation the following day with Luke about the mess after the party and he took it well.
"He apologised for the mess and he helped me to clean up and paid for some of the damage. He seemed himself and didn't say anything else had gone wrong. There was some damage to the ceiling but he didn't know who had done that."
The mum said the family was planning to go out for a meal but Luke "wasn't feeling up to it", so they got a takeaway instead and the teen "was his usual self" before going to bed.
The next day, on May 7, he was still in bed when she went to work and she later sent a text asking "are you up and ok?" Luke replied at 9.25am saying "yes cheers".
Him mother added: "His grandmother was going round at midday to drop off a birthday badge. She said he had to wear it, she would write on the back of it saying 'you must wear this all day'.
"She knocked on the door and went in and shouted for him then went upstairs and realised something was wrong.
"Luke's death has been a terrible shock to me, his dad and the rest of the family. We didn't think he was depressed about anything, we thought he had a good stable life, he had things to look forward to.
"We were worried something happened at the party, but there is nothing we have heard from anyone to suggest he had been.
"We just can't understand why he's done this. He never tried to do anything like that before. His family loved him very much, I wish I could understand what happened that day.
"He hadn't said anything to his friends. He had a few different groups of friends, some from primary school, up to his County friends and not one person had said anything that would give us a clue.
"He wasn't impulsive, had no mental illnesses and was looking forward to a family holiday in Spain with his grandparents and younger brother. He was a very positive boy and had no worries about his exams."
In a statement, one of Luke's friends said he went to bed at 10pm on the night of the party and asked a pal to "get rid of everyone".
Luke's mum returned home a short time later.
The friend added: "The following day we spoke throughout the day. We were laughing and joking about Luke's mum being cross about the damage caused from the party.
"Then the following day I found out what happened, I'm in complete shock and cannot believe what had happened."
"I've known Luke since primary school. He was really funny, cared for others and making jokes. He never mentioned anything significant about feeling down."
Another friend said they were drinking cider at the party and when they spoke on Snapchat on the Monday they offered to help clean up.
The friend said: "This has come completely out of the blue. He was a happy, social person who had no problems on his mind. I wasn't aware of any issues."
Det Insp Roger Edwards of Greater Manchester Police said: "From the investigation we did and the evidence we got from the witnesses who knew Luke, there was nothing to suggest he was involved in any altercation or fight at the party or anything in the intervening weeks leading up to the party.
"We did checks to see if he was involved in anything that could have got him in trouble but he wasn't.
"He was unknown to police systems and we cannot find anything suspicious about his death. We looked at his Netflix account and searches in the internet, there was nothing to overtly suggest he was self harming.
"We talked to a certain amount of people who were very close to him at the party. We wanted to see what happened and where there was any suggestion he had fallen out with somebody but there was nothing to suggest this was the case."
Police coroners officer Andrew Stevenson added: "The day before his death Luke had been swapping messages with his father talking about the party. He said he had people round and his mum wasn't happy about the state of the house.
"There was a message from a friend about getting drinks in, and Luke said he had Strongbow for the party. We had a look at Instagram and Snapchat and there were no recent posts and there was nothing on his Facebook of any relevance".
Spencer Davis, assistant principal at Cheadle College, said: "Luke had a personal tutor who is the first person to pick up on any signs of discomfort or distress but there is no evidence this was needed.
"His reports show he was in line for his target academically and there is nothing to say he was struggling or worried. Speaking to his friends at college, he seemed a very happy well adjusted popular type of person. It was a huge shock."
Recording a narrative conclusion, Stockport Coroner Alison Mutch said: "What has come across to me is he was an incredibly nice child and incredibly popular and kind person. He was a child who nobody had any concerns about, who seemed to be perfectly happy.
"There had been a party at the home address but that party was no different to another other party held by a child of 17 and it seemed to be a little bit boisterous, but he had never been in trouble with anyone and there is absolutely nothing to suggest he had taken anything inappropriate.
"It was very clear he shrugged off the worries for the damage of the house and he wasn't concerned.
"There is nothing to suggest anything happened on that Sunday. Police conducted extensive enquiries and there are no suspicious circumstances or evidence of third party involvement. I cannot be sure he intended to take his own life."
Following Luke's death his family raised £1,000 for Papyrus - the national charity for the prevention of young suicide.
