Sugar Ray's Mark McGrath says Scott Weiland 'was a shell of himself' before he died... as Stone Temple Pilots frontman is laid to rest in Hollywood

Scott Weiland was 'a shell of himself' weeks before he was found dead on his tour bus in Bloomington, Minnesota, on December 3.

That's the verdict of fellow musician and friend Mark McGrath who also added he wasn't shocked by the 48-year-old's passing.

'I saw him three weeks ago at a friend's wedding,' McGrath told the Allegedly podcast. 'We had a few drinks. He was a little slow. It was strange.. he was like a shell of himself.'

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Fellow musician: Mark McGrath, pictured in Hollywood on Wednesday, was friends with Scott Weiland and described his final encounter with the rocker at a friend's wedding three weeks ago as 'strange' 

Battled addiction: Scott Weiland was pictured with fans at a bar ahead of his November 20 concert with The Wildabouts in Elmwood, Illinois. Eyewitnesses said he'd been drinking what looked like vodka before the show

'He still got up and did a couple of STP songs and it was amazing,' McGrath added. 'The Voice never left him. It was kind of an Elvis thing.' 

Weiland, the frontman for Stone Temple Pilots and Velvet Revolver, was on tour with his band The Wildabouts when he died.

A Bloomington Police Department search warrant and affidavit obtained by Billboard revealed he was found unconscious and alone in a bedroom on the tour bus.

Search warrant: Police found cocaine in a least two locations on the band's tour bus (pictured) while it was parked in Bloomington, as well as several other medications including painkillers and anti-anxiety drugs

On the road: The Wildabouts was yet another incarnation for Weiland, 48, who fronted Stone Temple Pilots and Velvet Revolver. He's pictured with guitarist Tommy Black. The band released their first album in March

In the bedroom 'in plain view' was an 'unknown white substance packaged in baggies,' that later tested positive for cocaine.

Authorities also found Viagra, several opiates and anti-anxiety medications as well.

The band's bassist Tommy Black, 47, was later arrested on felony drug charges after cocaine was discovered on the tour bus.

Missed: Weiland was laid to rest in Hollywood this past Thursday and Velvet Revolver guitarist Dave Kushner's wife Chris posted this heartfelt message and photo on Instagram

The rocker was laid to rest Thursday December 10 at the Hollywood Forever Cemetery, Billboard reported Saturday citing an Instagram post by Chris Kushner, wife of Velvet Revolver guitarist Dave Kushner.

'A very sad day when u bury a friend. He was a good man. Don't believe everything u read. Remember, we were all there, she wrote alongside a photo her husband with Weiland.

Stories about Weiland's partying surfaced in the days following his passing with fans recalling the singer had been 'spaced out and drinking vodka' before a concert in Illinois, just days before he was found dead.

Pals: Photos of Black and Weiland hanging out together featured prominently on the former Stone Temple Pilots singer's Instagram account over the past two weeks

Eyewitnesses told DailyMail.com the singer was drinking what appeared to be vodka in a bar attached to the Arcada Theatre in Elmwood before performing a concert there with The Wildabouts on November 20.

'He was really spaced out,' said Scott Powers, 37, who was in The House Pub that night. 'He was definitely out of it.'

Weiland, 48, who was described as looking 'gaunt,' posed for photos with fans and signed memorabilia before going on stage. 

Not well: Weiland had appeared 'gaunt' to fans who saw him in the days leading up to his death. He is is pictured on tour on November 20 in Illinois

Rock 'n; roll lifestyle: In one photo he shared on Isntagram, Weiland was pictured holding aloft a bottle of Jack Daniels as Black reclined on a bar during the band's stop in Toronto

Photos posted on social media in the days before he passed away also showed him partying with bandmate Black.

The legendary rocker had a long history of alcohol and drug addiction. 

Weiland leaves behind a son and daughter, who are aged 13 and 15, from his second marriage.

Left behind: Weiland was married to third wife Jamie, left, pictured with him in 2014. He had two children, Noah and Lucy with his second wife Mary Forsberg, right, pictured in 2005