Investigators have identified two of the three men gunned down in separate incidents Monday, violence that pushed the number of homicides past 2014's year-end total.

In the first incident, officers found Juan Cubero, 20, lying face-down in the dining room of his family's home on Jasper Street near Pacific in Harrowgate just after 3 p.m., police said. A neighbor who had trouble reaching Cubero had called police, who had to enter the home through an open window after discovering the front door was locked.

Cubero had been shot several times in his head and chest at point-blank range, police said.

Next to Cubero was another man in his late 20s or early 30s, who police still hadn't identified as of Tuesday afternoon. The second victim had been shot in his head and left armpit, police said.

Both men were pronounced dead at the scene by medics. There was no information available Tuesday about what sparked the fatal gunfire. Investigators found no signs of forced entry at the home, which hadn't been ransacked.

Cubero's family declined to speak with a reporter Monday night. Police said he had no prior arrests.

About an hour after investigators made the grisly discovery on Jasper Street, officers in Nicetown's 39th District found Jamer Jackson, 19, suffering from gunshot wounds to his head, arms and legs at the intersection of Bristol and Hicks streets.

Jackson, who lived about a block away from where police found him, was pronounced dead 20 minutes later at Temple University Hospital, police said.

There's no information on a motive or suspect in the teen's slaying. Police said he had three prior arrests on his criminal record, two for assault and one for drug possession.

Jackson was the 250th person to be killed in Philly in 2015. In comparison, 225 people had been killed by this point last year, and the city ended 2014 with 248 homicide victims, according to police statistics.

Tipsters with information on either case should call 215-686-8477.