Yesterday Nasim Najafi Aghdam shot and injured three people on YouTube's San Bruno, California campus before turning the gun on herself. Aghdam died of the gunshot wound. Her three victims are expected to recover.

In the wake of this shooting, Donald Trump did what so many politicians do after such tragedies: he tweeted "thoughts and prayers."

Considering this shooting took place in Silicon Valley, on the turf of the tech giants, Jack Dorsey, Twitter's CEO, hit back at Trump directly, tweeting in a comment to Trump's tweet:

"We can’t keep being reactive to this, thinking and praying it won’t happen again at our schools, jobs, or our community spots. It’s beyond time to evolve our policies."

The gun safety policy prescriptions that Dorsey is suggesting Trump take on, which were advocated by the March For Our Lives organizers, include:

1. Fund gun violence research and gun violence prevention/intervention programs.

2. Eliminate absurd restrictions on ATF.

3. Universal background checks.

4. High-capacity magazine ban.

5. Limit firing power on the streets.

Some on Twitter were grateful for Dorsey's words:

The gunwoman in yesterday's shooting was a vegan blogger who had complained about YouTube removing ads from her videos. She had accused the site of discrimination in the past, stating that "YouTube and Google, which owns it, took measures to hurt her website in search results and reduce the number of views on her videos," according to The New York Times.

On the website and in YouTube videos, Ms. Aghdam discussed Persian culture, veganism and animal cruelty, performed music parodies and gave exercise tutorials. She had YouTube pages in Persian, Turkish and English.

While others took him to task for not doing more to reign in Trump on his platform of choice.