I wouldn't bet on any elaborate attempts. And I wouldn't expect family to publicly say what is the second and third most likely scenarios cause they still have to go through their lives somehow. Mysterious, cruel assassins planting his deceased body there is, what I'd say - a theory safe to share, socially: possible, but crazy unlikely.
What's unknown could add or take the likelyness from any scenario.
Something definitely happened and caused him to change his plans completely.
But even if it was something close to "the last straw" which leads a person to commit suicide, there is still more than one possibility.
It's possible that he was seeking safety and that led him to his family house, near which he commited suicide.
Also possible that he was in deep emotional distress, not ready to talk to anyone yet - anyone but his travelling companion, who was local to his native village. They arrived there late at night, home was closed, Mateusz didn't wanted to wake anyone up, it was cold, so they hided in barn, talked a bit, then the other person left, Mateusz stayed, felt even worse and decided to commit suicide (and the other person never came forward cause either assummed that Mateusz left home and went somewhere else or saw his body where they were and ran away scared of being accussed of leaving him alone, not helping or murdering him).
Also not impossible that mostly same scenario, but while they stayed in barn some fight happened, or the other person attacked Mateusz, hit him too hard, realised that he's dead (or suspected it), hanged him staging suicide and fled hoping that nobody will notice.
It's not like it was just in the barn, on the very top of it, second-floor level, not visible from the entrance, not visible even from inside of the barn.
General overview of the property, barn in question isn't the building in the middle thou:
View attachment 405326
Entrance to the barn:
View attachment 405328
Going in:
View attachment 405325
Climbing to first-floor level:
View attachment 405330
This is where Mateusz's father surely was at least once while Mateusz was allegedly hanging/lying there:
View attachment 405331
What's visible from there:
View attachment 405329
Closer look at the corner:
View attachment 405324
Mateusz's sister points out where loops were hanging:
View attachment 405333
Where the body fell:
View attachment 405327
All pictures provided are screenshots from:
https://panstwowpanstwie.polsatnews...-roku-cialo-znaleziono-tuz-obok-domu_1692769/
Other things learned from that coverage:
Dentist was questioned about the likelyness of tooth falling out of the skull: allegedly said NO WAY, absolutely no way considering that there was hay everywhere in sight.
Expert criminologist and retired police inspector said that considering weather circumstances of that year it seems completely possible for the body to end up not discovered for so long (cause very dry weather).
Same criminologist also was shocked and outraged by the neglect and mistakes done by investigators who
should know better.
Plenty of ropes in the barn, yet he was hanging on some black rope of unknown source.
CORRECTION: Mateusz's clothes weren't left at the scene but immediately returned to family in these trash bags. It's the sister who take care of it and prevented it from being trashed, initially no testing was done, despite of possible presence of blood on those.
Reporter invited to the studio was in Hutków 1,5 month (in May) after Mateusz's disappearance with all his crew (while covering his missing case) and confirmed that none of them smelled anything odd despite of standing inches from the gates.
Neighbours started reporting some awful smell later.
Mateusz was texting with his fiancee and family a lot - till that last text in which he promised to show up in about 2 hours.
HIS PHONE WAS STILL ON FEW DAYS AFTER HE WENT MISSING.
His case was classified as second class missing person's case - which means that he was added to databases, nothing much since it's deemed that there is no serious danger to the missing person (no known illnesses, no old/young age, no suspected kidnapping)
Retired police inspector judged it as understandable approach in first few days, but added that after about a week they should apply for access to his phone records and log's history, as well as reclassifying it as first class missing person's case (those actually involve some active search action on the side of LE).
Family got access to his facebook account, saw that he got message from cops in Zamość, urging him to notify family about his whereabouts. As for late November 2018 family had no knowledge of any searching actions done by LE except for that message and looking into neighbour's raspberry bushes and asking her if she saw Mateusz's car. Family tried to urge them, then beg for to the very least, checking nearby bodies of water by drone - to which they got response that Zamość doesn't own any drone and they don't have any money for such search.
It is unknown that any actual search was done by the Polish LE since multiple areas of their actions ended up investigated by supervising agencies and deemed to not be a matter of public knowledge.
The claim that Mateusz lied to his family and that his car never entered Poland and never went into Szczecin area was based on checkup that was done on only two border crossings in Szczecin area: Kołbaskowo i Lubieszyn.
Nearby border crossings in Warnik and Gryfino were not checked.