Toronto police are calling on the public to come forward with any information they might have on two of the city's latest homicides.

In a news conference Monday morning, detectives laid out new information in the deaths of Nate Thompson and a 17-year-old boy, killed last week in two separate shootings.

But they said more information is needed to move the investigations forward.

Det. Andrew Ecklund of the homicide squad said police have identified two persons of interest in connection with the death of 26-year-old Thompson, who was shot in the head Friday near Jane Street and Sheppard Avenue West.

Surveillance footage from the area showed two males, both black, near the scene around the time of the shooting. One wore a green t-shirt and black pants; the other wore a white t-shirt with a logo on the back, blue jeans and white shoes.

The second male was seen both walking and riding a bike.

Police believe it was a targeted attack, but said there is no information to suggest the killing was gang-related. Ecklund said Thompson, a Toronto resident and father of five, was known to police.

Meanwhile, police said they have no leads or suspects in the 17-year-old’s death. His body was found in the Humber River near Finch Avenue West and Rexdale Boulevard on Friday, but an autopsy showed he died from multiple gunshot wounds.

The youth was last seen in the area the evening of  July 26, apparently heading from one family home to another, police said. Family members reported him missing Thursday after their own efforts to find him failed.

It’s unclear at this time if he was killed in the area and left there or if he was shot elsewhere and dumped in the river, police added. The date and time of his death are also unclear.

“We are appealing to those that frequent the area, if they’ve seen anything unusual, particularly from Monday to Friday, that they report it to us,” said Det. Susan Gomes of the homicide squad.

“If they are frequent walkers down there, anything that they would have seen to be unusual would be appreciated.”

A student, he shared residences between Toronto and Peel region. He was known to police, but that isn’t considered a factor in his death.