Tight end Aaron Hernandez of the New England Patriots remains the target of intense scrutiny in the shooting death of 27-year old semi-pro football player and friend Odin Lloyd, but law officials say they are not releasing details of the investigation.
On Saturday, more than a dozen investigators, including two K-9 units and a locksmith, visited Hernandez's North Attleborough, Mass., home for almost four hours and left with bags and boxes of what is presumed to be evidence.
According to multiple reports, Yasminia Serderevic, a spokesperson for the Bristol County District Attorney's Office, said Sunday that officials are not releasing any information on the investigation.
A Saturday statement from that same office said that if there was a major development there would be a public announcement.
Hernandez, who grew up in nearby Bristol, Conn., and was drafted by the Patriots out of the University of Florida in 2010, has been tied to the shooting death of Lloyd since the victim's body was found Monday afternoon in an industrial parkway only a quarter mile from Hernandez's home.
There have been conflicting reports whether a warrant for arrest, either on paper or by computer, has been issued for Hernandez regarding obstruction of justice in relation to destroying potential evidence.
However, even if such a warrant has been drawn, it was not served as of late Sunday afternoon.
Police searched Hernandez's home from Tuesday through Saturday, as neighbors and a massive media presence watched from the street. Law enforcement sources told ABC News that the security system at Hernandez's home was intentionally damaged and his cell phone was shattered.
Authorities are concerned with those issues, as well as the fact that Hernandez apparently hired people to clean his house Monday.
A surveillance video reportedly shows that Hernandez was with Lloyd in Hernandez's neighborhood hours before Lloyd was murdered. Those two and a couple of other men were seen leaving a Boston area bar late Sunday night.
It has been reported that Lloyd died between 1 a.m. and 6 a.m. Monday.
Lloyd, 27, was a linebacker for the semi-pro Boston Bandits. There were indications that he was shot and the body dumped in the industrial park.
Lloyd was dating the sister of Hernandez's girlfriend, Shayana Jenkins, who is the mother of his child.
Lloyd's family says Hernandez was his friend, but although they have heard from his girlfriend since the death, Hernandez has not talked to them.
Fox 25 News reported that neighbors heard shots fired between 3 a.m. and 3:30 a.m. Monday.
Video surveillance footage showed Hernandez and two other men wearing hooded sweatshirts enter Hernandez's home shortly afterward. Hernandez was seen at Lloyd's home an hour earlier.
Hernandez apparently has contracted the legal firm of Ropes and Gray in the Boston area and two lawyers were at his home on Friday and Saturday.
Michael Fee, a lawyer with the firm, released this statement regarding Hernandez and the investigation: "Out of respect for that process, neither we nor Aaron will have any comment about the substance of that investigation until it has come to a conclusion."
The growing investigation into Hernandez prompted CtyoSport, which makes the Muscle Milk line of supplements, to fire Hernandez as an endorser Friday.
"In light of the investigation involving Aaron Hernandez, CytoSport is terminating its endorsement contract with Mr. Hernandez, effective immediately," the company said in a statement.
Hernandez signed a $40 million, five year extension on his Patriots contract last August.
News has surfaced of at least three other incidents in which Hernandez was associated with guns and police.
A Providence, R.I., police report details an incident in which police found a gun disposed under a car after a New York Jets fan confronted Hernandez at 2:26 a.m. on May 18, although there was no evidence that the gun belonged to Hernandez.
In 2007, Hernandez was interviewed by Gainesville, Fla., police about a shooting that occurred after Florida's 20-17 loss to Auburn. Hernandez was not considered a suspect.
Last week, a law suit was re-filed in Florida by Alexander S. Bradley, who apparently alleges that Hernandez pointed a gun at him and it discharged while they were riding in a vehicle.
The bullet allegedly struck Bradley in the face, resulting in the loss of his right eye and other facial injuries that required surgery. According to the suit, the two men had argued outside a strip club.
Bradley is seeking $100,000 in damages.