Thank you for keeping who safe?

Friday evening, McKinney police responded to what appeared to be a fight between teenagers at a public pool. Two days later, a sign was placed next to the gate of the pool, reading, “Thank you McKinney PD for keeping us safe,” in support of the officers.

As of press time, the only visual evidence that's been out in public is a now-viral, seven-minute video involving an officer manhandling a black teenage girl in a swimsuit while he detained her.

Let's back up a bit.

By now the story of the biker gangs in Waco has already gone national with multiple accounts of what exactly happened and why it happened. To summarize, less than a month ago at a Twin Peaks restaurant, members of different biker gangs were holding some sort of a meeting before a shootout occurred. In total, nine bikers died and 18 others were injured, though officials have yet to reveal details regarding how many of the dead and injured were shot by police.

At the time of the report, more than 100 weapons were seized after the conflict, from chains and brass knuckles to firearms and batons. Photos of the aftermath of the shootout have shown many biker gang members sitting around nonchalantly as officers were arresting them.

That's right. Alleged gang members, mostly middle-aged white men, were sitting on the curb on their phones, free to do whatever until they get booked in jail. They must have not posed a threat to the police officers who, by the way, say they were shot at so they returned fire.

Let's back up a bit more.

When Michael Brown was killed in Ferguson, Missouri, I wrote a column titled “Hands up, don't shoot.” The point was to show that Brown wasn't given his due process, as many hollered that we (meaning the ones looking for justice) weren't giving the officer, Darren Wilson, his due process.

But of course, some read it, tried to read between the lines and claimed that I was out for blood, specifically Wilson's.

One of my favorite comments —and by favorite I mean absolutely ridiculous comment — was by someone who pointed out that Brown was 300 pounds and “at his height and weight, Mr. Brown could have easily killed the officer if he reached him.”

As someone who no doubt wasn't trying to compliment me once said, I have a somewhat less-than-athletic physique. So if I were to walk towards someone, specifically a police officer who is supposed to be a hero with courage, who goes above and beyond the call of duty, would I scare them due to my height and weight? Would an officer fear for their life if my 300-plus pound figure walked toward him? Am I considered a threat?

Perhaps, but let's get back to the present, in McKinney where supposedly a fight broke out near a public pool on Friday. If you haven't seen the video yet, it's seven more minutes of evidence showing bad things happening to black people, again. This time, a teenage girl in her swimsuit.

McKinney Police Department released a statement on Sunday morning saying that on June 5, officers responded to a disturbance at the Craig Ranch North Community Pool. The initial call came in as a disturbance involving multiple juveniles at the location, “who do not live in the area or have permission to be there, refus[ed] to leave.”

Someone took video, with the star of the clip running full speed, tripping and doing a barrel roll as if he was chasing down a serial killer from “Criminal Minds.”

FYI, the “disturbance” was a group of teenagers fighting, keep that in mind.

Cpl. Eric Casebolt, the star of the clip, shouted instructions, telling kids to get down on the ground. After putting two teens in handcuffs, the officer yelled, “get your [butts] out of here,” to a group of teenage girls. About a minute later, when they stuck around, the officer went back to the group and yelled, “You're leaving now! You're leaving now! Keep running your mouth! You know what?”

Throughout the video, Casebolt’s interactions with the teens are hostile. He quickly escalates to physical contact with the youth, while other officers are shown having normal conversations with several teens.

That's when he grabbed the teenage girl and forcefully dragged her to the ground. Concerned citizens ran towards the scene and that's when the officer pulled out his gun and pointed it at other teenagers before two fellow officers came and stopped him from shooting. Casebolt even resists the officers’ attempts to subdue him.

Casebolt then went back to the girl, forced her face to the ground and stuck his knee on her back so that she couldn't run off, because you know, to him she was a threat.

What other reason can there be for this grown man to treat a teenage girl like this? Again, it’s not clear she was involved in the initial disturbance. He got angry because as she began to move away from the pool area, she continued to voice her discontent. Wow, a teenage girl talking. That’s shocking.

Had the two other officers not been there, would he have shot his gun? I don't want to speculate because you never know, but as ugly as this was, this could have been much worse.

So let's compare this to the earlier two incidents I've brought up. Michael Brown, 300-pound unarmed man, deemed a threat and was shot and killed. The biker gang with weapons? The count was at nine dead, 18 injured, unknown if it was due to police force or due to the gang violence. Nevertheless, many were arrested peacefully, as documented by various pictures. You can see many of them using their smart phones while waiting for the process to be over. I guess they weren't considered a threat since it looked like they were allowed to play Angry Birds on their mobile devices. Unarmed 15-year-old black girl in a bathing suit? Forcefully detained. Why? I guess she was considered a threat.

Do you see the problem?

Remember, this incident started with some fight between teenagers.

But hey, thanks McKinney PD for keeping the pool safe from those threats.