Mrs. Lorenza Delos Santos, mother of Kian Delos Santos, weeps as she is surrounded by Kian's classmates during the wake at his home in Caloocan on Friday. Jonathan Cellona, ABS-CBN News

MANILA- While most parents who toil abroad want to go home to their children in the Philippines, Lorenza Delos Santos' homecoming was nothing like she thought it would be.

Lorenza, an overseas worker for 3 years now, flew home to Manila Thursday night to reports that her 17-year-old son Kian Loyd was killed in an anti-illegal drug raid in Caloocan City last Wednesday.

Video courtesy of Dominic Almelor, ABS-CBN News

"Hindi niyo na kayang ibalik yung buhay ng anak ko," Lorenza bewailed.

Her son was found dead nearby a river by his father Saldy after police claimed that Kian attempted to shoot authorities, prompting cops to fire back.

However, a surveillance footage in the area suggested that the minor had already surrendered himself to authorities before he was shot dead.

The footage shows 2 cops accompanying the teen to the spot where the latter was killed. A witness also said that the police beat up Kian and gave him a gun before he was told to run for his life.

Lorenza can only lament the death of her son, whom she described as kind and innocent.

"Napakabuti po kasi niya eh... Hindi po masama ang anak ko. Ang dami naman pong taong nagmamahal sa anak ko eh, hindi po siya yun," she said.

"Napakainosente po ng anak ko eh. Mahal na mahal ko yung anak ko. Diyos ko naman," she added.

Neighbors of the Delos Santos family also chimed in on the couple's call for justice.

"Justice for Kian! Justice for Kian!" they shouted.

Video courtesy of Dominic Almelor, ABS-CBN News

Both Lorenza and Saldy have denied that their grade 11 son used illegal drugs.

Lorenza also called on President Rodrigo Duterte to help seek justice for her slain child.

"Nananawagan po ako sa Pangulong Duterte, please naman po help... Sana po magkaroon ng hustisya para maniwala po ako sa kampanya niyo na hinuhuli niyo at pinapatay yung mga totoong drug addict," she said.

"Hindi po drug addict yung anak ko," she added.

The couple will file charges against police officers involved in the operation.

"Kung matalo man kami, at least, inilaban ko anak ko. Sinasabi ko sa kanya pinaglaban ko siya," Saldy said.

- with a report from Dominic Almelor, ABS-CBN News