The 26-year-old and Lavontay were shot in the head and pronounced dead at the scene.
The man, who was driving a silver Lexus, was heading south in the 2300 block of North Lake Shore Drive near Fullerton Avenue when another auto pulled up next to him and opened fire, striking him multiple times.
The woman screams for help, both for herself and for her unborn baby, neighbors recalled.
The woman was live streaming on Facebook when bullets rang out in the background.
While Chicago police did not name the suspect in Tuesday's deadly shooting, Johnson did say that the department had promising leads and was tracking down the shooter and whoever else may have been in the auto when the fatal shots were fired. The video was later removed from Facebook. The shootings were not connected, but occurred 25 minutes apart of each other.
At a press conference on Wednesday about the shooting of 11-year-old Takiya Holmes, Mr Johnson said criminals have no fear of the judicial system. "The male victim - older male victim, in his 20s - was a documented gang member". Chicago police spokesman Anthony Guglielmi said Jones has an extensive juvenile arrest record and a record as an adult that includes an arrest on a felony charge of aggravated assault after allegedly attacking a teacher.
Nationwide danger from structurally deficient bridges
The following list ranks states by the number of structurally deficient bridges, using the same data. The study found that 9 percent of them, or 609, are structurally deficient.
Johnson said that with "promising leads" and video evidence in the latest shooting, he had no doubt that those responsible would be caught.
Jones spotted three people outside his home, determined they didn't belong there and went inside and got a handgun, police said.
Breitbart News reported that over 400 individuals were shot in Chicago between January 1, 2017, and February 14. Investigators believe it was her boyfriend in the vehicle who was the target, according to police.
A two-year-old boy was murdered in Chicago on Mondayafternoon in a gang-related shooting that was streamed on Facebook Live.
Last year, there were more than 750 murders and 3,500 shootings - levels not seen in Chicago in two decades. "These shootings must be a turning point for our city". "Anyone with information about these crimes owes it to the families of these children to come forward".