Tyler, Texas — In the past two months there have been three tragic and unexpected shootings.
After each shooting, there have been reports stating that the shooters had something in common.

We took a look at the last three shooters that have caused tragedy and horror for friends and family across the nation and found that reports state that they had some sort of a mental illness.

Twenty-four year old James Holmes killed twelve people in Aurora, Colorado and reports state that his mother said that she wasn't surprised to find out her son had done this.
The Huffington Post also stated that Holmes psychiatrist said he may be a threat to colleagues.

We also asked the owner of Shootist Gun & Knife Shop in Tyler if there are warning signs of people who shouldn't be buying a gun.

Mack Woods told KETK, "I think everybody has a sixth sense about people that might be up to doing them harm, or have issues that we don't want to harm those issues even more than they might be set up, I watch for body language, I watch for comments they might throw out there showing that they might do something crazy."

Licensed councilor, David Wheeler, from ETMC's Behavioral Health Clinic told KETK that family members should stay close to loved one's who show signs of insanity or depression, so that these type of situations don't happen.

Forty year old Wade Michael Page killed six people and died while shooting up a temple in Wisconsin. After the shooting a former soldier with Page told The Milwaukee Journal that he regrets covering up Page's suicide attempt in the past.

However, Wheeler told KETK that he believed Page had a problem with alcohol and he may have said he was going to kill himself while inebriated and it would have been difficult to know if he was serious or not. He believed that Page's violent acts were a hate crime.

Thirty-five year old Thomas Caffall killed two people and died during a shooting near Texas A & M. His mother told "Click2Houston" he had mental difficulties, was very troubled and his step father called him a ticking time bomb.

Woods told KETK, "There are some people who have spent a great deal of time locked up in mental facilities who ingest a great deal of mental health medication usually called head meds everyday which alters the perception with which they see things."

Wheeler said that Caffall was out of the job for a while and must have very depressed and just lost it when he was getting evicted. He also said that if he had not been out of the job and lost all self esteem he may never had done something like this.

So what is it that makes people cross the line and react in such violent ways?

Woods told KETK that he believes there is a difference between a mental illness that is treated with medication and under control, and someone who is mentally disturbed, and those people should never be allowed to buy firearms.