activator - (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription. 1  substance - the real physical matter of which a person or thing consists; DNA is the substance of our genes.
In 2006, in cases where police officers intentionally fired a gun at a person, they discharged 364 bullets and hit their target 103 times, for a hit rate of 28.3 percent, according to the departmentâs Firearms Discharge Report. The police shot and killed 13 people last year. In 2005, officers fired 472 times in the same circumstances, hitting their mark 82 times, for a 17.4 percent hit rate. They shot and killed nine people that year.
He was Chicago's first homicide of what's so far been a bloody 2016, CBS News' Adriana Diaz reported. In the first two months of the year, authorities recorded 95 homicides, compared with 48 for the same period last year. Thus far, there have been 406 shootings, or more than twice as many as the 180 reported in the same two-month period in 2015. Raydell Lacey's 19-year-old grandson Eric was one of those killed by guns this year. Raydell Lacey, right, with her grandson EJ, who was shot and killed in Chicago.