Man killed trying to stop Oak Cliff domestic violence fight

A father of three is dead after reportedly trying to step in when a man was assaulting his girlfriend. A 28-year-old Samarius Johnson was gunned down at an Oak Cliff apartment complex. The suspect now in jail on a murder charge. Fox 4's Vanya Castillo spoke with Johnson's family. North Texas mom says her son died trying to help a woman in need. And now that the suspect is in jail, she's sharing why she believes her son is a hero. 28-year-old Samarius Johnson was shot and killed at the Anderson Apartments in Oak Cliff on October 30th. According to a police affidavit, a man was assaulting his girlfriend when Johnson went upstairs to the apartment and confronted the man, who told him off and shut the apartment door. Police say the door later opened and Johnson went back upstairs when the suspect came outside with a handgun and shot Johnson multiple times. Johnson jumped over the railing of the stairs and crawled to where his body was found. He couldn't have minded his business knowing that there was a woman in need, a woman that needed help, and no one else was helping. To his family, though, this didn't come as a surprise. His mother, Lakita Johnson, had spent a lifetime watching her son help others without a second thought. I kept telling him because that's just how he is. Samarius, you can't get in everybody's affairs. You can't save everybody. Investigators say the suspect fled before officers could arrive, but his girlfriend helped identify him. 23-year-old Isaiah Brazil was arrested four days after the shooting and charged with murder. For Justice Johnson, her brother's death has only solidified the way she's always seen him. He was so selfless, and I 100% believe he saved that lady's life because, like she said, if he would do that to a stranger... He absolutely would have done it to her. And for his mother, even the man accused of killing her firstborn son isn't beyond forgiveness. Because he's still a baby himself. He's still a baby. I don't have no grudge. I don't hate him. And I love him as well. But forgiveness doesn't make the house feel any less empty. Just, I just want to know why. To the man that did it, why? Why? I do hope this brings awareness to domestic violence because there are some good people out there that's willing to give their lives. Brazil is being held at the Dallas County Jail. Johnson's family is also trying to help raise money to cover funeral expenses and help raise the three daughters he leaves behind. Vanya Castillo, Fox 4 News.