Two of the men were found dead inside torched cars, three died of alleged suicides and another collapsed and passed away on a bus from an apparent overdose.

Investigators claim there is no evidence the deaths have anything to do with the Ferguson protests, which stemmed from a white police officer’s fatal shooting of 18-year-old Michael Brown. Only two of the deaths were deemed homicides by police, but not connected with their activism.

One of the men is Edward Crawford Jr., who was captured in a picture throwing back a tear gas canister fired by police who were trying to disperse protesters. He fatally shot himself in May 2017.

Some activists say their concerns about a possible connection come from a culture of fears that persist in Ferguson more than four years after Brown’s death. Many protesters to this day are receiving threats.

Reverend Darryl Gray said he found a box inside his car. After the bomb squad arrived they found a six-foot python inside.

No arrests have been made in connection to the two ruled homicides.

The Ferguson protests began in August 2014 after officer Darren Wilson fatally shot Michael Brown during a street confrontation. Brown was unarmed but Wilson claimed he fired in self-defense. Ferguson is widely considered as the launching platform for Black Lives Matter and activism against police brutality still heavily prevalent in society today.