JOLIET, Ill. (CBS) – New details were revealed Tuesday about the four suspects in a bizarre double murder in Joliet.

Adam Landerman, 19, Alisa Massaro, 18, Bethany McKee, 18, and Joshua Miner, 24, have been accused of luring Terrance Rankins and Eric Glover, both 22, to Massaro’s home on Thursday, then robbing and killing both victims. The suspects also allegedly tried to dismember Rankins’ and Glover’s bodies.

CBS 2’s Marissa Bailey reports the suspects and victims appear to be friends.

Friends Eric Glover, 22, and Terrance O. Rankins, 22, were killed in Joliet Thursday by four acquaintances, police say. (Family handouts)

Outside of court after the suspects’ first court appearance Monday, CBS 2 was told they frequently hung out with the victims.

A friend of Rankins shared a photo, that had been posted on Rankins’ Instagram profile, just two days before his murder. It appeared Rankins might have taken the photo of Landerman and McKee, who are facing each other in the picture, with a mirror in Landerman’s lap, and markings on his face.

A photo of Bethany McKee and Adam Landerman, posted on Terrance Rankins’ Instagram page. (Credit: Instagram)

While it’s unclear what the group was doing at the time, the victims’ friends said there’s no excuse for the heinous crime.

“This is something that had been brewing in their system for a long time. That was some diabolical acting right there,” George Leftridge said. “Ain’t no excuse out here. It can’t be no drug out here going to make a person do that. You know what I’m saying? Ain’t nothing.”

Joliet Police Chief Michael Trafton said the four suspects were not tested for drugs or alcohol when they were arrested.

Landerman is the son of a Joliet police sergeant.

Pictures posted to what appear to be Landerman’s and McKee’s Facebook pages also showed a life of smoke and gory self-portraits.

A photo of Bethany McKee from her Facebook page. (Credit: Facebook)

County records showed Massaro has a restraining order against Miner, who has an extensive criminal record – including a pending child pornography charge.

Trafton said he’s never seen such a disturbing crime scene in his 27 years on the job.

The suspects are due back in court on Feb. 5.

Funeral arrangements for Rankins and Glover have been finalized:

ERIC GLOVER

Visitation:
Friday January 18th, 2013
10:00 a.m – 11:00 a.m.
Range Funeral Home
202 S. Eastern Ave
Joliet, IL 60433

Service:
Friday January 18th, 2013
11:00 a.m
St. Patrick’s Catholic Church
710 W. Marion Street
Joliet, IL 60436

TERRANCE RANKIN

Visitation:
Saturday January 19th, 2013
10:00 a.m – 11:00 a.m.
W.W. Holt Funeral Home
175 W. 159th Street
Harvey, IL 60426

Service:
Saturday January 19th, 2013
11:00 a.m
True Vine Missionary Baptist Church
14324 Marshfield Avenue
Harvey, IL or Dixmoor, IL 60426