FORESTVILLE, Md. (CBSDC) — Five men have been arrested and charged with first degree murder in the death of 15-year-old Suitland High freshman Charles Walker, who was shot and killed Monday.

Prince George’s County Police have identified the suspects as 20-year-old Derryck Antonio Green, of Alexandria, 18-year-old Jermani Maurice Whitner, of Temple Hills, 23-year-old Glenn Cornell Leach, of Southeast D.C., 21-year-old Tayvon Delonte Williams, of Oxon Hill, and 21-year-old Kevin J. Smith, of Temple Hills.

Investigators are trying to determine which suspect actually pulled the trigger, though all five participated in the murder and have admitted to being involved, police said.

Authorities do not believe any of the suspects knew Walker personally, and said the shooting began as an attempted robbery. The suspects were trying to take a pair of shoes the teen’s friends say he planned to give his girlfriend as a Valentine’s Day gift.

Walker is one of six Prince George’s County students who have been murdered since the start of the academic year, leaving their peers shaken to the core and school officials “horrified.”

Despite cries for peace, the shooting deaths of two Suitland High School students in little more than 24 hours have many fearing there is no end in sight to the senseless violence.

Walker, who lived in Hillcrest Heights, was shot Monday afternoon. His 18-year-old classmate Aaron Burrell Kidd, of District Heights, was gunned down Tuesday afternoon.

A second 18-year-old victim in the Tuesday afternoon shooting was in grave condition Tuesday night, but succumbed to his injuries and was pronounced dead Wednesday afternoon. Police identified him as Andre Walter Shuford, of Forestville. They say he was not a Suitland High student.

Authorities say there is no connection between any of the shootings, but residents and fellow students are nonetheless rattled.

“There are a lot of kids really shaken up about this,” a classmate of the slain students told WNEW’s John Domen. “One kid told me… ‘We’ll just continue … kids will continue to die over stupid situations.’ ”

For many teens, a sense of security has been ripped away and a feeling of vulnerability now looms large where innocence once resided.

“It takes away your feeling of being safe on the street, to walk by yourself at night… walk by yourself anywhere,” another student said. “What’s the point of you taking a young person’s life who hasn’t even had a chance to even go to the 10th grade?”

WNEW’s John Domen contributed to this report. Follow him and WNEW on Twitter.