That High School Shooting in Cali?

They are claiming the kid got an 80% lower and made the 1911 himself.

There were reports it jammed once during his spree.

Having made a couple 1911, I am impressed he was able to do that on his own, as a teenager, and get a pistol out of it that only jammed once with one magazine.  It is non-trivial to accomplish even that level of 'success.'

To maximize his chances of getting something that works even that much (presuming the kid built it and not his dead father 3 years ago) he must have eschewed oversized parts that require lots of fiddling and fitting.  And lubricate the crap out of it.  But it's hard to pick up for book and instructional videos the, say, proper tension of an extractor, and to know to avoid significant pitfalls in the build process with only 16 years of life under your belt.  If he was lucky with his parts pile he'd have a rattly 1911 that would work.

"But T-Bolt, facotry workers in 40s threw these together by the millions with minimal futzing!"

Yes, they did, but there was a guy around that trained the final assemblers and helped the final assemblers when they ran into problems.  A secretive murderous 16 year old has nothing to fall back on besides the internet, and the internet is fat least three quarters BS.  If the kid made the pistol he had to have been kinda clever at least.  It can be easy, but not THAT easy.

Kid's still an asshole, tho.  And what a gawd-awful waste.  If you insist, and were gonna off yourself, what is wrong with chugging a bottle of Lye, huh, punk?

(All this presumes the media and California aren't just lying to us about it all.  And they probably are.)