The Voice singer Christina Grimmie was fatally shot by a 21-year-old white male  — armed with two guns and a knife — who traveled to Orlando from another city in Florida specifically to kill her, police said Saturday.

Grimmie, who had wrapped up her show with Before You Exit at the Plaza Live Theater, was shot late Friday while signing autographs and meeting fans. The suspect shot and killed himself after he was tackled by Grimmie’s brother, Marcus. The 22-year-old singer died about five hours later at an Orlando hospital.

Orlando Police Chief John Mina declined to release the name of the suspect pending further investigation, but said he traveled from another — unidentified — Florida city to kill Grimmie. “He came here to commit this crime and had plans to travel back to where he came from,” he said.

Mina said there was no indication Grimmie knew her assailant. He said detectives were attempting to get information from the suspect’s phone and had not yet established a motive for the killing. Detectives were en route to the suspect’s home city to search his residence, he added.

Mina indicated the suspect planned to leave Orlando by some form of public transportation, such as plane, train or bus. “There is is no car that we are looking for,” Mina said. “He did make travel arrangements to get back where he was going.”

Police said the suspect was carrying two handguns, additional ammunition and a large hunting knife. The shooting occurred near the back of the venue around 10 p.m. while Grimmie was hosting a meet-and-greet for fans. There were about 120 people in the theater at the time.

Mina said the gunman “approached her and opened fire, striking her.” The police chief said the theater’s security guards search bags of concertgoers when they arrive, but do not use a metal detector.

Police spokeswoman Wanda Miglio called Grimmie’s brother a hero, crediting him with stopping the suspect from hurting anyone else.

Josh Call, who was working at a hot dog stand outside the venue, told the Orlando Sentinel that he heard four or five gunshots.

“It was quick like pow, pow, pow, pow,” he said. Call said he then went inside the venue and saw a female victim with a gunshot wound to her head.

“This should have been something that was fun and exciting,” Miglio said, “and for something like this to happen is just a tragedy.”

Grimmie, who built up a huge fan base YouTube, appeared on season six of The Voice in 2014 where she finished in third place.