Investigators say Kori Muhammad laughed and admitted to the murders.
When Zackary Randalls knew he wanted to propose his future wife, Katie, his friend tattooed "Will you marry me?" with check boxes for "Yes" or "No" on his knees.
Francine Williams and Randy Hicks, mother and stepfather of slain security guard Carl Williams, pose in front of their home in Fresno, Calif., Wednesday, April 19, 2017. "Not get rid of them as in kill them", his father said.
When he learned he was wanted in the security guard killing, Muhammad made a decision to take out as many other white men as possible before he was caught, Dyer said.
Muhammad's worldview was thoroughly dominated by race. Fresno Police say Muhammad was on their radar in connection with a Motel 6 murder last Thursday.
Dyer identified the victims of Tuesday's shooting, which included 37-year-old Mark Gassett, 58-year-old David Jackson and 34-year-old Pacific Gas and Electric Company worker Zachary Randalls.
Friend Eddie Valencia said Randalls was excited to start work as a customer-service representative and was doing a ride-along Tuesday.
Muhammad is in custody and is expected to be charged with four counts of murder - for Tuesday's three victims and 25-year-old Motel 6 security guard, Carl Williams, another white man who Muhammad is accused of shooting last week.
Randalls was married for eight years to a local elementary school teacher and they had two kids, a 4-year-old boy and 3-year-old girl. The gun may have been picked up by someone else, Dyer said. Greer said Jackson tripped over a curb in the parking lot of Catholic Charities when two more shots were fired.
Muhammad told officers at his arrest that he was the guy they were looking for, Dyer said.
Muhammad has a criminal history that includes arrests on weapons, drugs and false-imprisonment charges. Police say Williams was unarmed.
Dyer described Muhammad as an extremely callous man.
Muhammad took investigators to the shooting scenes and gave accounts "very consistent" with evidence authorities had gathered, Dyer said.
Brian Levin, director of California State University, San Bernardino's Center for the Study of Hate and Extremism, said many of Muhammad's social media postings make reference to terms used by the Nation of Islam, which has been labeled a racist hate group by the Southern Poverty Law Center.
The shooting was labeled by police as a hate crime. Muhammad's father, Vincent Taylor, told The Los Angeles Times that his son was convinced he was part of an ongoing war between whites and blacks, and that "a battle was about to take place".
Muhammad replied that he respected Fresno police officers and did not want to force them to shoot him or put them in the spotlight.
Prosecutors plan to review the case against Muhammad on Thursday and he could be arraigned in court on Friday. Police Chief Jerry Dyer credits the technology that detects the sound of gunshots with allowing police to apprehend the gunman Kori Ali Muhammad just 4 minutes after his shooting rampage began, limiting the carnage to four people in all.