Unfortunately, the article says nothing as to whether he got one or more covid vaccines, so it's hard to say what the reason was for his cancer. However, there are plenty of articles that strongly suggest that Covid vaccines have harmed young people. Here's an article from earlier this month that strongly suggests he was harmed by one or more covid vaccines:
Exclusive: College Student Injured by Moderna Vaccine Says Independence Now Just a ‘Distant Memory’ | Children's Health Defense
We can assume that they dont want to advertise that the most likely cause is the fake vaxxes.The simple fact that he was diagnosed at 30 when anything under 45 is rare and 30 was practically non existent before the jabs says it all.