Mourners have left items in memory of Dennis Taylor, a 15-year-old who was fatally shot Saturday near his home in Landover, Md. (Lynh Bui/The Washington Post)

Police are still searching for the person who fatally shot a 15-year-old just a few hundred feet from his home in Landover, Md.

Days after the slaying of Dennis Taylor, friends and family gathered for a candlelight vigil Monday around a memorial of balloons and stuffed animals to honor the teen nicknamed “Lil Chic.”

The teen was shot multiple times at 9:40 p.m. Saturday near the house he shared with his family in the 2200 block of Columbia Place, according to Prince George’s County police.

Karen Forges, who lives on the same street, heard the three shots while in the living room of her home watching television. She immediately told her family to get down. When she felt it was safe, the registered nurse ran outside and heard someone yell, “My friend has just been shot!”

She found Dennis bleeding in the street just a few houses away.

Forges, a nurse who works at Prince George’s Hospital Center, began CPR while her brother called 911.

“My spirit and my heart said go forward,” Forges said about aiding the young man whom she often saw in the neighborhood on his bike.

Despite the efforts of Forges and the paramedics, he was pronounced dead at the scene.

Detectives don’t believe Dennis’s killing was a random crime, police said. Investigators recovered a gun at the scene.

Neighbor Bernadette Trowell, Forges’s mother, remembered Dennis as a hard-working young man who often called her “Grandma.”

“He was always trying to come around and cut grass or earn a little money,” said Trowell, who also heard the sound of three shots. “It’s devastating.”

Many of the friends and neighbors at the memorial declined to comment, saying it was “too soon.” Dennis’s family also declined to speak to a reporter Monday.

As 6 p.m. neared, Dennis’s family crowded outside their home. Wearing T-shirts bearing his picture, they carried silver balloons to his memorial and held a vigil, praying for answers in the teen’s killing.

A reward of up to $25,000 is available for information leading to an arrest and indictment in Dennis’s killing. Anyone with information can call 866-411-TIPS (8477) with the option of remaining anonymous.