Bob Woolmer had coached Pakistan since 2004
The family of murdered Pakistan cricket coach Bob Woolmer says it was unaware of any threats to his life.
In a statement, the family also said it had no knowledge of Woolmer's involvement in match-fixing, the source of some speculation in the media.
Jamaican police probing Woolmer's death say they could be searching for more than one attacker.
Woolmer, who was 58, was strangled in his room hours after Pakistan lost to Ireland in the cricket World Cup.
The defeat dumped Pakistan - a talented but erratic team ranked fourth in the world - out of the competition.
Police say Woolmer may have known his killer or killers, and are studying video footage from the Pegasus Hotel in the Jamaican capital, Kingston, where he was killed.
Family 'devastated'
Flanked by Woolmer's widow, Gill, and their sons, Dale and Russell, Woolmer's agent, Michael Cohen, read a statement to reporters outside the family home in Cape Town, South Africa.
BOB WOOLMER TIMELINE

1. 17 Mar: Ireland beat Pakistan2. 18 Mar, 10.45am: Woolmer found unconscious in hotel room3. 18 Mar, 12.14pm: Pronounced dead at hospitalPhoto: Earth Sciences and Image Analysis Laboratory, NASA Johnson Space Center.
"To the best of the family's knowledge, there is absolutely nothing to suggest Bob was involved in match-fixing," Mr Cohen said.
"Contrary to reports, we can confirm there is nothing in any book Bob has written that would explain this situation and there were no threats received."
Reports in the media have suggested Woolmer might have been working on a book exposing illegal gambling in cricket matches.
The statement said the family were devastated by Woolmer's death and were struggling to come to terms with it.
A post-mortem examination established that the former England player died as a result of "manual strangulation".
Members of the Pakistan team and staff have already been interviewed, and plan to return home at the weekend.
Lines of inquiry
Suspicions that the coach may have known anyone who attacked him have been raised after it emerged there were no signs of forced entry at his hotel room in Kingston and none of his possessions was taken.
Bob was a large man - it would have taken some significant force to subdue him
Mark ShieldsDeputy police commissioner
Woolmer was found unconscious by staff at the Pegasus Hotel on Sunday morning.
The deputy commissioner of the Jamaican police, Mark Shields, said this might now be a hunt for more than one killer, and urged the perpetrators to hand themselves in.
"Bob was a large man. It would have taken some significant force to subdue him," he said, adding that police were ruling nothing out and had "lots of lines of inquiry".
"I have to say at this stage that it looks as if it may be somebody who's somehow linked to him, because clearly he let somebody into his hotel room and it may be that he knew who that person was," Mr Shields told the BBC.
Mr Shields also "unequivocally dismissed" Indian television reports that arrests had been made.
"That's nonsense, as far as I'm concerned. There's actually no truth in that," he said.
The BBC's Andy Gallacher in Kingston says that Bob Woolmer's murder has stunned the cricketing world and left the World Cup in disarray.

World Cup warm-up, St Vincent, Australia: 200-5 (40.5 ovs) bt England 197 (48.3 ovs) by 5 wkts
Scorecard

Watson made short work of the modest victory targetEngland succumbed to a five-wicket defeat against Australia in the final World Cup warm-up match at St Vincent.
Shane Watson and Adam Gilchrist shared 140 within 24 overs, and though both fell in consecutive overs, the target of 198 was reached with 55 balls left.
Michael Vaughan (62) won the toss and shared 116 for the second wicket with Ian Bell (56) as England scented a fourth successive win over Australia.
But others did not master a slow pitch as two fours came in the last 24 overs.

With a modest total to defend England needed a good start in the field, and Monty Panesar's misfield at fine-leg, which allowed Watson a boundary in the first over from James Anderson, did not provide it.
Jon Lewis conceded three no-balls in his first two overs and was flicked over mid-wicket for six by Watson in the sixth over.

Flintoff looked completely out of form in St Vincent
Sajid Mahmood's attempted slower ball summed up England's day, trickling way down the leg-side, bouncing in front of Paul Nixon and away for five wides, his opening two overs costing 20.
With Vaughan off the field as expected to rest his hamstring, Paul Collingwood found himself in charge when Andrew Flintoff also went off having experienced more discomfort with his ankle.
One of Collingwood's first decisions was to introduce Panesar, and he struck when Watson's cut was smartly taken low at point by Kevin Pietersen.
Mahmood was fortunate in the next over when another delivery heading down the leg-side was glanced by Gilchrist and well caught by a diving Nixon.
Panesar might have had a second wicket when Liam Plunkett just failed to cling on to a one-handed diving attempt at deep mid-off when Michael Clarke lofted a drive.
With 42 still needed, Jamie Dalrymple found some gentle turn and Ricky Ponting got an inside edge into his stumps as he tried to make room to cut.
Flintoff returned to bowl with no obvious ill-effects, but Australia ticked off the runs and appeared to be coasting.
With eight needed Brad Hodge got a leading edge to give Collingwood a return catch, then two runs later Mike Hussey played down the wrong line and was bowled by Lewis for a duck.
Any thoughts of a collapse were quashed when Brad Haddin dispatched a full toss from Collingwood over square-leg for six to end the match in style.
England again decided to omit Andrew Strauss and Ravi Bopara for the 13-a-side game, and it now seems unlikely either will feature in next Friday's opening World Cup group game against New Zealand.
Australia were boosted by Gilchrist's return, the keeper having arrived in the Caribbean late following the birth of his third child.

He showed no signs of rustiness, and was standing up to the stumps to seam bowlers Nathan Bracken, Glenn McGrath and Stuart Clark.
Bracken was entrusted with the first over and immediately found some away swing, albeit at a gentle pace.
But Tait proved a different propostion with his pace through the air and surprised Ed Joyce, who was trapped in front for five in the second over.
Tait also bowled two wides and was taken out of the attack after two overs, with four bowling changes made in the first 15 overs.
Vaughan showed glimpses of his best form with some delightful strokes, including three fours off Mitchell Johnson in the left-armer's second over.
He pulled a good length ball from McGrath to the boundary in imperious fashion, much to the chagrin of the veteran seamer.

Brad Hogg made the breakthrough, luring Bell out of his ground, and in his next over he accounted for Vaughan, the England skipper skewing a cut to Shane Watson at gully.
As Ponting completed his powerplays at the start of the 29th over, Pietersen became the third wicket to fall in 15 minutes.
Attempting to turn Tait through mid-wicket, he got an inside edge onto the pad and the ball looped gently to Hogg running in from cover.
Flintoff looked all at sea, particularly against Hogg's chinamen, and having scratched his way to 13 from 31 balls, he top-edged to deep mid-wicket.
One run later in the next over, Collingwood, who earlier just eluded the field with a top-edge, mis-timed another pull and found mid-on.
Clark took his third wicket when Plunkett tried to force the ball away on the off-side and got an inside edge into leg-stump.
Tait accounted for Mahmood in similar fashion and collected his fourth scalp with a pacy yorker that trapped last man Lewis.

Shoaib (left) and Asif will not travel to the Caribbean with PakistanPakistan pace bowlers Shoaib Akhtar and Mohammad Asif have been ruled out of the World Cup due to injury.
Shoaib has been unable to recover from a knee injury that forced him to be sent back from South Africa in January.
Asif has been carrying a niggling elbow problem since that tour, and neither will be fit enough for the tournament starting on 13 March.
Yasir Arafat and Mohammad Sami will replace the pace duo and join the squad in the Caribbean at a later date.
"It is a big blow for us, but I am confident that Yasir Arafat and Mohammad Sami will live up to the expectations," team coach Bob Woolmer said.
"They will join the team in a week's time and we hope to overcome our injury problems with a united team effort."
Pakistan play hosts West Indies in the opening match of the World Cup on the first day of the tournament.
The squad flies out to the West Indies later on Thursday.
Their withdrawal has nothing to do with doping
Pervez MirPakistan Cricket Board
Shoaib (knee and hamstring) and Asif (elbow) have been in the news for doping issues as well as injury-related matters.
They both tested positive for nandrolone last September but had lengthy doping bans quashed on appeal in December after claiming they had not knowingly taken the banned substance.
The World Anti-Doping Agency is in turn contesting that appeal result in the Court of Arbitration for Sport
The Pakistan Cricket Board asked all its players to submit for drugs tests by 28 February.
Shoaib and Asif did not do so, raising unsubstantiated speculation that they still had traces of nandrolone in their system.
But PCB spokesman Pervez Mir insisted: "Their withdrawal has nothing to do with doping.
"They were due to feature in dope tests once they regained full fitness but for us the chapter is now closed.
"We did our best and waited because [captain] Inzamam[-ul-Haq] wanted them in the team as they are our best bowlers.
"But reports of their injuries were not good and we could not have waited any more."
Arafat is an all-rounder who bowls medium pace and has played just seven one-day internationals, while Sami is an experienced paceman.