Coordinated Manipulation in the Crypto-Currency Markets?

I’m sure anyone whom has followed the Crypto-currency market can agree that its unstable and volatile. Its not a hobby you would want to participate in if you have a weak heart. It can test the resolve of even the strongest of seasoned investors.
Only a small percentage of investors have been able to reap the massive benefits of this young adolescence of a market. Those early adopters and believers in the technology whom held on for life to this point have had massive gains. But they did also suffer through the high boom in the market and plunge of Bitcoin’s price following the MtGox hack.
The Hack of 2014 — Bitcoin’s First Burst.

When an exchange is hacked and millions of dollars are stolen, you can expect a large drop in price and a drop in confidence in the safety of your coins. Many investors end up leaving the market all together or taking their assets to an offline wallet.
During the news of MtGox hack, the price of bitcoin was in the $800s. The months following saw the price of bitcoin fall to a low of $289.30 on October 5th 2014. (Figure 1)

It took 8 months for bitcoin to hit its all time low in 2014 from when the hack was reported in February of 2014. The high in 2014 was priced at $1,017.12. That is about a 71% drop in price from the high to the low in the time span of January 2014 to October 2014. Bitcoin had lost about $8 billion off its market cap.
September 5th 2018 — Coordination at its finest
On September 5, 2018 the crypto-currency market did something that raised some eyebrows. Two negative news articles were published from multiple online crypto-currency news sources. These articles were focused as some of the reasons that there was a $17 billion loss in Bitcoin’s market cap. One article wrote about how Goldman Sachs was planning on stepping back from their plans to open up a Crypto Trading desk. This is big news considering one of the biggest obstacles holding back crypto-currencies is the adoption from established banks. Any news linking traditional banking’s possible adoption of crypto-currency can cause some market movement.
The other article wrote on the possible reactivation of a Bitcoin wallet holding a sum of about $800 million. Some of the bitcoin within the wallet was then spread among various online exchanges. Thus a drop in bitcoin’s price could be expected. (Figure 2)

Nothing among the price drop in Bitcoin and its forks like Bitcoin cash and others were surprising. They followed the same price drop pattern. (Figure 3)

What caught my eye was the similarities in the pricing movements of alt-coins that are separated from bitcoin. These alt-coins are not forks of bitcoin at all. They are their own separate block chains and projects. They should follow their own independent pricing movements. In the same way as Tesla’s price drop from Elon Musk’s personal antics and twitter posts is independent from Amazon reporting record breaking numbers.
Here are the pricing movements of the market’s top coins and tokens during the same time period.







If you look back at Figure 2, the bitcoin pricing chart clearly shows 2 distinct large dips in price. All other charts follow the timing of the bitcoin dips with their owns dips. The big difference is that the alt-coins suffered a 3rd distinct pricing dip. This dip can probably be due to the many alt-coin holders finally dropping out of the market after seeing 2 large sell offs in the market that hit many of the tops coins at the exact same time.
This is what brings me to my original question and the title of this writing. Was this a coordinated manipulation in the Crypto-currency markets? It is a gross error in the pricing data shown due to the large trading volumes? Or was it just simple coincidence?
