He was wearing a distinctive mustard color shirt, which was not wearing at the time of his arrest, Newsham said.
Residents in the Logan Circle neighborhood say they don't feel any safer with Ms. Martinez's suspected attacker off the streets.
After she was stabbed, Wendy Martinez made her way into a Chinese American restaurant.
Wendy Martinez's death came a week after she became engaged to her fiancée, Daniel Hincapie. She appears to be talking to the customers inside before she collapses.
"I saw her fall down, and then I see a hole in her neck from the stab wound". In the Martinez case, D.C. Police are calling it an unprovoked attack. "My daughter was the most attractive, special, vibrant young girl ... very focused on her career, but above all she was a warrior", Martinez said at Thursday's press conference.
According to court documents, a witness told police that Crawford is an avid user of the synthetic drug, K2.
The arrest provides some relief to Martinez's family and friends, but now they must plan her funeral just days after she and her fiance got engaged. He said police will probe whether Crawford has any mental health of substance abuse issues.
Family of Wendy Martinez said in a statement on Wednesday, "Wendy Karina Martinez was the light of our lives". Martinez said in a recent interview with thebridgework.com that she liked to unwind from work by running around the city or working out at her favorite local studio.
"You never know what can happen because this was a random act of violence", said Francisca Cativa, who was walking her daughter to school.
For the past two years he worked as the chief of staff at the technology and management company FiscalNote. Wendy Martinez will be buried in the wedding dress she picked out to get married in, according to CBS News.
"Wendy was an invaluable member of our team and a vibrant member of the community", said a FiscalNote tweet posted Wednesday.
Police had offered a $25,000 reward for information leading to the arrest of the suspect.