The parents of one of the students tragically killed in Berkeley sent legal letters amid concerns that the initial investigation into the balcony collapse may not have been fully independent.
Lawyers representing the parents of Ashley Donohue (22) have been in touch with the owners of Library Gardens, the apartment complex where the accident occurred ten days ago, the Irish Times reports this morning.
George and Jackie Donohue called for evidence from the scene to be preserved and analysed in an impartial manner as little as three days after the accident. Alameda district attorney Nancy O'Malley was asked to present their initial findings to the grieving couple's lawyers, based in San Francisco firm Rains Lucia Stern.
In turn, the law firm presented their own evidence to the DA, which included a statement from an Irish student who attended the party that night. This witness has said that the balcony was actually sloping downwards towards the street before it collapsed.
Other evidence presented to the DA's office included photographs demonstrating water damage to the balcony dating back to 2008 and complaints of rot, leaks and flooding as little as three months ago.
Ms O'Malley has since confirmed that a new criminal investigation into the tragedy has been launched, a development that one of the partners at the law firm, Harry Stern, has described as "a step in the right direction".
Addressing the families directly, Ms O'Malley said: "Each of you deserve to have this matter thoroughly and exhaustively investigated. We will do so. That is the pledge I make from my office."
Ms O'Malley has denied that pressure from the Irish community lead to the launch of this formal investigation following the announcement from local authorities that their involvement was over.
Her office confirmed that although they received a large amount of correspondence from members of the Irish community, they stressed that there had been "no pressure" to open a formal investigation because of this.
The new probe follows a City of Berkeley engineering investigation which found that the eight timber support beams of the fourth-storey balcony failed due to "severe dry rot".
A follow up letter from the law firm was sent to the property's management company Blackrock, Greystar mere hours after this conclusion.
The US construction firm and waterproofing sub-contractor who worked on the balcony will be interviewed as part of the probe, which will determine whether criminal charges or a civil consumer protection action are warranted.
According to the Irish Times, Blackrock have responded to the Donohues' lawyers saying that they will co-operate fully with all investigations and that they would continue to carry our demolition and repair works next month.
He was his elder brother, his only sibling, his best friend - and they were inseparable. Everyone had talked of Niccolai Schuster (21), the much-loved 'King of Tomfoolery' who relished practical jokes almost as much as he loved football.
For the second day in a row, young men and women rose yesterday morning and dressed with care - the troops of lads in formal suits and narrow black ties, the groups of girls in head-to-toe black, with perfect make-up and poker-straight hair.