READING, Pa. -

Investigators in Reading are still trying to figure out who is responsible for the brutal stabbing death of a 15-year-old boy.

Wilberto Rojas, 15, of the 800 block of Church Street in Reading,  died on his way to the hospital after his neck was sliced on Friday, said police.

According to police, Rojas's attacker is described as a Hispanic man in his early 30's.

In the aftermath of the murder, Rojas's friends are calling his attacker a coward. They are praying for the boy's family and demanding justice.

Bianca Alarez wiped away tears wishing she had one last chance to see and speak to her best friend, Wilberto.

"Can you imagine someone wanting to hurt him like that?" Alvarez questioned. "No, he was a good kid."

A memorial filled with candles and stuffed animals has been growing near where Rojas lived.

According to investigators, he was walking with a group when a Hispanic man ran up, slashed his throat and then disappeared up Church Street.

Lorena Ortiz saw Wilberto moments before.

"He gave me a hug and a kiss on the cheek like he always does and he hugged me really tight," said Lorena Ortiz.

Wilberto's friends describe the 15-year-old as outgoing and always happy. They say he loved basketball and music. He had just finished the ninth grade and was looking forward to a fun relaxing summer.

Meanwhile, police are working on leads to catch his killer.

Anyone with information about the case is asked to call Crime Alert Berks County at 877-373-9913.