Meanwhile, Walter Stern, an attorney for Thomas' family, said, "I think they will at least file neglect and abuse of inmate charges, a minor felony in Wisconsin," but added, "I do not believe they will charge anyone with an actual homicide."
Thomas was arrested on April 14, 2016 and charged with irresponsible endangerment and felony firearms violations for allegedly shooting a man in front of his parents' house and later opening fire in a local casino, but all the charges were dismissed following his death.
His family has lodged a 25-page federal civil complaint against Sheriff David Clarke, who oversees the jail, as well as Milwaukee County.
The family said in their complaint that the defendants deliberately and willfully deprived Thomas of medical care among other types of mistreatment.
Mistreatment of African Americans is rife in the US and black people have always been exposed to some sort of brutality and violence by police.
Two-thirds of young blacks say they or someone they know has experienced police violence or harassment, according to a poll released in 2015.
Last year, experts from the United Nations warned that African Americans in the US were facing a "human rights crisis" and they should receive reparations for slavery.Source: Press TV